First Co Shw Series Hydronic 2-20 Tons Horizontal Chilled Water Instruction Manual (+ PDF)

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SHW SERIES Hydronic 2-20 Tons
Instruction Manual

Contents hide

1 SHW SERIES Hydronic 2-20 Tons Horizontal Chilled Water

6 COMPONENT STATIC RESISTANCE

7 UNIT SELECTION PROCEDURE

8 SHW MOTOR DRIVE ASSEMBLY SELECTION CHART

9 Physical Data – Models 24SHW – 60SHW

10 GENERAL SPECIFICATIONS

11 HOT WATER HEATING CORRECTION FACTORS

12 Documents / Resources

12.1 References

13 Related Posts

SHW SERIES Hydronic 2-20 Tons Horizontal Chilled Water

All motors are factory installed
Sloped and insulated drain pan
Galvanized steel cabinet
Insulation meets IAQ standards
Manual air vents
Hanger brackets (2 – 5 ton only)
Adjustable pulleys
Various motor options
Factory installed filters

www.ahridirectory.org
Unitary Small AC AHRI Standard 210/240
Certification applies only when the complete system is listed with AHRI.

First Co. commercial – duty SHW chilled or hot water blower coil units are designed for installation within the conditioned area or as remote units with duct systems.

SHW SERIES

First Co. commercial – duty SHW chilled or hot water blower coil units are designed for installation within the conditioned area or as remote units with duct systems. Standard 4 row coils can be used for cooling or heating. These air handlers are compact, with large removable panels for installation and ease of service. Separate filter panels are provided on both sides of unit. Optional accessories include 6 row cooling coils, hot water coils, various motor options, mixing boxes, motor starters, and discharge plenums. All models feature positive slope drain pans. Standard models are available in 8 popular sizes 800 through 8000 nominal CFM (2 through 20 tons). All standard models are ETL listed and rated in accordance with ARI Standard 430.
CABINET –
Fabricated of heavy gauge galvanized steel. Seismic resistant mounting brackets are standard on 2-5 ton models.
BLOWER –
Resiliently mounted, heavy duty, double inlet, forward curved blade, centrifugal type. Each wheel is dynamically balanced for smooth, quiet operation. All blowers are belt driven with field adjustable pulleys to permit variations in static pressure and air requirements. All blowers have ball bearings.
COILS –
Fabricated of 3/8” or 1/2” OD seamless copper tubes mechanically expanded to highly efficient aluminum fins to maximize heat transfer. All coils have manual air vents. All models have positive slope drain pans.
INSULATION
The entire interior of the cabinet is insulated with one (1) inch insulation.
FILTER –
One inch throw away filters are provided as standard in all 2 – 5 ton units. One inch permanent filters are provided as standard in all 7-1/2 – 20 ton units.
Filters can be changed without tools. Space available for 2”.
FACTORY WIRED –
All standard motors are field or factory installed and wired at voltage specified by customer. (If not specified, multi-voltage motors will be wired at highest voltage)
MOTOR –
Standard motor is 1725 RPM. The adjustable motor mount permits easy belt adjustment. A variable pitch pulley allows balancing of the system to the desired CFM. Standard motors have internal overload protection. Therefore, units shipped with standard motors will be ETL listed. Most non-standard motors (i.e. 575V, 2-speed, TEFC, some 50 Hz., etc.) are not available with internal overload protection. Therefore, most units shipped with non-standard motors can be ETL listed with the addition of a factory installed motor starter (contact the factory for starter information and ETL verification.)
MISCELLANEOUS –
Slotted mounting rails for easy installation (2 -5 ton SHW only). Rails are turned down 1/2” on each end for safer and easier installation.

4 x 4 junction box accepts a field installed (24/120V) relay / transformer for low voltage control.
3/4 inch NPT drain connections on both sides of cabinet.
Header connections on the right side as standard.
Knockouts are provided for conversion to the left side. (Looking with air flow).
Drain pans are coated for corrosion protection.

Options:
Contact the factory

6 row cooling coil instead of standard 4 row coil (factory installed only).
Stainless steel drain pan.
Motor starters.
Hot water coil can be field or factory installed in either the reheat or pre-heat position (reheat is standard).
PART NUMBER FOR UNIT MODEL MANIFOLD CONNECTIONS
24HWK 24SHW/SVW 7/8” OD
36HWK 36SHW/SVW
48HWK 48SHW/SVW
60HWK 60SHW/SVW
90HWK 90SHW/SVW 1-1/8” OD
120HWK 120SHW/SVW 1-3/8” OD
180HWK 180SHW/SVW
240HWK 230SHW/SVW
Discharge plenum with four way double – deflection grille (field installed)
PART NUMBER FOR UNIT MODEL DEPTH (1)
24DP 24SHW 6”
36DP 36SHW
48DP 48SHW
60DP 60SHW
90DP 90SHW
120DP 120SHW
180DP 180SHW
240DP 230SHW
(1) Height and width are the same as the unit being attached to.
Relay / Transformer mounts directly on 4 x 4 junction box on each unit.
Part number is 310-E301 (24/120V), 310-E302 (24.208-230V) and 310-E303 (24/277V) – (for 2-5 ton models only)

Mixing Boxes

Dimensions:

MODEL	FOR UNIT MODEL	A	B	C	D	E	F	DAMPER SIZE (NOM)	SHIPPING WEIGHT
24MB	24SH, SV	16	16-3/8	18-1/8	8	6	1-1/16	2-16 x 8	40
36MB	36SH, SV	16	16-3/8	27-5/8	8	6	1-1/16	2-26 x 8	58
48MB	48SH, SV	18	20-3/8	29-1/8	10	8	1-1/16	2-27 x 10	65
60MB	60SH, SV	18	20-3/8	36-1/8	10	8	1-1/16	2-34 x 10	78
90MB	90SH, SV	18	25-3/8	45-1/8	10	8	1-1/16	2-42 x 10	110
120MB	120SH, SV	20	30-3/8	48-1/8	12	10	1-1/16	2-46 x 12	135
180MB	180SH, SV	22	37-7/8	57-1/8	14	12	1-9/16	2-54 x 14	190
240MB	240SH, SV	22	50-1/2	57-1/8	14	24	1-9/16	2-54 x 14	210

Features:

Cabinet fully insulated – 3/4 inch.
Embossed galvanized cabinet on 24-230MB.
Crank arms and linkage rod for damper connection are furnished. Connections can be made on either side of mixing boxes. The balance of necessary linkage hardware, damper motor, and controls to be field supplied.
Dampers can be positioned for either rear/top or rear/bottom locations.
1” duct flanges provided on damper openings.
Dampers have air seals on the edges for positive closing. 24-90MB have single horizontal damper blades. 120-230MB have double horizontal damper blades.
When used with water coil units, a “freeze stat” must be installed to prevent coil damage caused by low ambient conditions.

COMPONENT STATIC RESISTANCE

MODEL	NOMINAL CFM	COMPONENT STATIC RESISTANCE (INCHES OF WATER)
		CABINET	COOLING COIL*		HEATING COIL	FILTER
		CABINET	4 ROW	6 ROW	2 ROW	FILTER
	600	0.09	0.14	0.22	0.07	0.04
	700	0.10	0.18	0.27	0.09	0.05
24SHW	800	0.11	0.23	0.34	0.12	0.06
	900	0.12	0.28	0.42	0.14	0.07
	1000	0.13	0.33	0.50	0.18	0.08
	1000	0.09	0.17	0.25	0.08	0.04
	1100	0.10	0.19	0.28	0.10	0.05
36SHW	1200	0.11	0.23	0.34	0.12	0.06
	1300	0.12	0.26	0.39	0.13	0.07
	1400	0.13	0.30	0.45	0.15	0.08
	1400	0.09	0.18	0.27	0.09	0.05
	1500	0.10	0.20	0.31	0.10	0.06
48SHW	1600	0.11	0.23	0.34	0.11	0.06
	1700	0.12	0.25	0.38	0.12	0.07
	1800	0.13	0.28	0.42	0.13	0.08
	1800	0.10	0.20	0.28	0.09	0.05
	1900	0.11	0.21	0.31	0.10	0.06
60SHW	2000	0.12	0.23	0.34	0.11	0.06
	2100	0.13	0.25	0.37	0.12	0.07
	2200	0.15	0.28	0.40	0.13	0.08

MODEL	NOMINAL CFM	COMPONENT STATIC RESISTANCE (INCHES OF WATER)
		CABINET	COOLING COIL*		HEATING COIL	FILTER
		CABINET	4 ROW	6 ROW	2 ROW	FILTER
	2500	0.12	0.26	0.39	0.13	0.04
	2750	0.14	0.30	0.45	0.16	0.05
90SHW	3000	0.16	0.34	0.51	0.18	0.06
	3250	0.17	0.39	0.58	0.21	0.07
	3500	0.19	0.44	0.65	0.24	0.08
	3400	0.14	0.29	0.43	0.14	0.05
	3700	0.15	0.33	0.48	0.16	0.06
120SHW	4000	0.17	0.37	0.54	0.19	0.07
	4300	0.19	0.41	0.61	0.21	0.08
	4600	0.21	0.45	0.67	0.24	0.09
	5200	0.16	0.30	0.44	0.14	0.05
	5600	0.17	033	0.49	0.16	0.06
180SHW	6000	0.19	0.37	0.55	0.18	0.07
	6400	0.21	0.41	0.61	0.20	0.08
	6800	0.23	0.45	0.66	0.23	0.09
	6000	0.11	0.21	0.31	0.10	0.04
	7000	0.16	0.30	0.44	0.14	0.05
240SHW	8000	0.19	0.37	0.55	0.18	0.07
	9000	0.23	0.45	0.66	0.23	0.09
	10000	0.29	0.58	0.86	0.28	0.11

* Wet Coil (Dry Coil P.D. = Wet P.D. x .70)

UNIT SELECTION PROCEDURE

Complete as much of the “INFORMATION REQUIRED FOR UNIT SELECTION” on page 2 as possible.
Example:
INFORMATION REQUIRED FOR UNIT SELECTION
System Type ( circle one) : 2 – pipe (1 coil ) or 4 – pipe ( sep. htg. & clg. coils )
CFM ___3900___
E.S.P. __.80___ MOTOR: HP:_________VOLTAGE:____230____PHASE:___3___
COOLING: INDOOR: DB _________ WB _______OUTDOOR:
DB______
TOTAL BTUH____158,000___SENS. BTUH _______ GPM ______EWT ___45____
HEATING:
TOTAL BTUH _______GPM________EWT________EAT________
MISC: ________
Select the unit model that meets the required total MBH cooling and heating at the required conditions from tables on pages 16 – 23 (capacities and air are the same for SHW and SVW models).
Example: Required clg. capacity = 158,000 BTUH clg. @ 45 degree EWT Unit selected = 120SHW6
Refer to page 7 for the balance of the selection procedure: If the required CFM falls within the range for the selected model, proceed to number 4. If not, use the First Co. Computer Selection Program or contact the factory for assistance.
Determine the required motor horsepower by matching the selected model (i.e. 120SHW6) with the closest CFM at the required External Static Pressure (ESP).
Note the horsepower (HP) at the top of the CFM range that is needed.
Example: Required CFM is 3900 at .80 ESP.
HP required = 2 HP
Select the motor voltage, phase, and horsepower and then the appropriate Motor Drive Assembly Number that applies.
Example: Above example requires Motor Drive Assembly Number 984120-G3

SHW MOTOR DRIVE ASSEMBLY SELECTION CHART

Model CFM	Available External Static Range					Total Static In.
	2 Row	4 Row	4R/2R	6 Row	6R/2R
	Coil	Coil	Coil	Coil	Coil
*24S()W**	*24S()W2**	*24S()W4**	*24S()W42**	*24S()W6**	*24S()W62**
– 1/4 HP –
700	0.13 – 0.80	0.04 – 0.71	0.00 – 0.62	0.00 – 0.61	0.00 – 0.53	0.37 – 1.04
800	0.00 – 0.63	0.00 – 0.52	0.00 – 0.41	0.00 – 0.41	0.00 – 0.29	0.33 – 0.92
900	0.00 – 0.44	0.00 – 0.30	0.00 – 0.16	0.00 – 0.16	0.00 – 0.02	0.28 – 0.77

– 1/3 HP –
700	0.36 – 1.23	0.27 – 1.14	0.18 – 1.05	0.17 – 1.04	0.09 – 0.96	0.60 – 1.47
800	0.29 – 1.03	0.18 – 0.92	0.07 – 0.81	0.07 – 0.81	0.00 – 0.69	0.58 – 1.32
900	0.21 – 0.83	0.07 – 0.69	0.00 – 0.55	0.00 – 0.55	0.00 – 0.41	0.54 – 1.16

– 1/2 HP –
700	0.64 -1.62	0.55 – 1.53	0.46 – 1.44	0.45 – 1.43	0.37 – 1.35	0.88 – 1.86
800	0.59 -1.62	0.48 – 1.51	0.37 – 1.40	0.37 – 1.40	0.25 – 1.28	0.88 – 1.91
900	0.54 -1.52	0.40 – 1.38	0.26 – 1.24	0.26 – 1.24	0.12 – 1.10	0.87 – 1.85

– 3/4 HP –
700	0.90 – 1.62	0.81 – 1.53	0.72 – 1.44	0.71 – 1.43	0.63 – 1.35	1.14 – 1.86
800	0.87 – 1.62	0.76 – 1.51	0.65 – 1.40	0.65 – 1.40	0.53 – 1.28	1.16 – 1.91
900	0.84 – 1.61	0.70 – 1.47	0.56 – 1.33	0.56 – 1.33	0.42 – 1.19	1.17 – 1.94

*36S()W**	*36S()W2**	*36S()W4**	*36S()W42**	*36S()W6**	*36S()W62**
– 1/3 HP –
1000	0.13 – 0.74	0.00 – 0.65	0.00 – 0.57	0.00 – 0.57	0.00 – 0.49	0.34 – 0.95
1100	0.07 – 0.61	0.00 – 0.52	0.00 – 0.42	0.00 – 0.43	0.00 – 0.33	0.32 – 0.86
1200	0.00 – 0.47	0.00 – 0.36	0.00 – 0.24	0.00 – 0.25	0.00 – 0.13	0.29 – 0.76
1300	0.00 – 0.34	0.00 – 0.21	0.00 – 0.08	0.00 – 0.08	0.00 – 0.00	0.26 – 0.66

– 1/2 HP –
1000	0.34 – 1.34	0.25 – 1.25	0.17 – 1.17	0.17 – 1.17	0.09 – 1.09	0.55 – 1.55
1100	0.29 – 1.19	0.20 – 1.10	0.10 – 1.00	0.11 – 1.01	0.00 – 0.91	0.54 – 1.44
1200	0.24 – 1.04	0.13 – 0.93	0.00 – 0.81	0.00 – 0.82	0.00 – 0.70	0.53 – 1.33
1300	0.18 – 0.90	0.05 – 0.77	0.00 – 0.64	0.00 – 0.64	0.00 – 0.51	0.50 – 1.22

– 3/4 HP –
1000	0.88 – 1.55	0.79 – 1.46	0.71 – 1.38	0.71 – 1.38	0.63 – 1.30	1.09 – 1.76
1100	0.86 – 1.55	0.77 – 1.46	0.67 – 1.36	0.68 – 1.37	0.58 – 1.27	1.11 – 1.80
1200	0.82 – 1.54	0.71 – 1.43	0.59 – 1.31	0.60 – 1.32	0.48 – 1.20	1.11 – 1.83
1300	0.78 – 1.51	0.65 – 1.38	0.52 – 1.25	0.52 – 1.25	0.39 – 1.12	1.10 – 1.83

*48S()W**	*48S()W2**	*48S()W4**	*48S()W42**	*48S()W6**	*48S()W62**
– 1/2 HP –
1500	0.17 – 0.75	0.07 – 0.65	0.00 – 0.55	0.00 – 0.54	0.00 – 0.44	0.43 – 1.01
1600	0.12 – 0.66	0.00 – 0.54	0.00 – 0.43	0.00 – 0.43	0.00 – 0.32	0.40 – 0.94
1700	0.06 – 0.55	0.00 – 0.42	0.00 – 0.30	0.00 – 0.29	0.00 – 0.17	0.37 – 0.86

– 3/4 HP –

1500	0.46 – 1.37	0.36 – 1.27	0.26 – 1.17	0.25 – 1.16	0.15 – 1.06	0.72 – 1.63
1600	0.42 – 1.26	0.30 – 1.14	0.19 – 1.03	0.19 – 1.03	0.08 – 0.92	0.70 – 1.54
1700	0.37 – 1.15	0.24 – 1.02	0.12 – 0.90	0.11 – 0.89	0.00 – 0.77	0.68 – 1.46

– 1 HP –
1500	0.88 – 1.63	0.78 – 1.53	0.68 – 1.43	0.67 – 1.42	0.57 – 1.32	1.14 – 1.89
1600	0.85 – 1.63	0.73 – 1.51	0.62 – 1.40	0.62 – 1.40	0.51 – 1.29	1.13 – 1.91
1700	0.81 – 1.61	0.68 – 1.48	0.56 – 1.36	0.55 – 1.35	0.43 – 1.23	1.12 – 1.92

*60S()W**	*60S()W2**	*60S()W4**	*60S()W42**	*60S()W6**	*60S()W62**
– 1/2 HP –
1900	0.15 – 0.59	0.00 – 0.48	0.00 – 0.38	0.00 – 0.38	0.00 – 0.28	0.42 – 0.86
2000	0.11 – 0.51	0.00 – 0.39	0.00 – 0.28	0.00 – 0.28	0.00 – 0.17	0.40 – 0.80
12100	0.06 – 0.42	0.00 – 0.29	0.00 – 0.17	0.00 – 0.17	0.00 – 0.05	0.38 – 0.74

– 3/4 HP –
1900	0.44 – 1.16	0.33 – 1.05	0.23 – 0.95	0.23 – 0.95	0.13 – 0.85	0.71 – 1.43
2000	0.42 – 1.08	0.30 – 0.96	0.19 – 0.85	0.19 – 0.85	0.08 – 0.74	0.71 – 1.37
2100	0.38 – 0.99	0.25 – 0.86	0.13 – 0.74	0.13 – 0.74	0.00 – 0.62	0.70 – 1.31

– 1 HP –
1900	0.77 – 1.57	0.66 – 1.46	0.56 – 1.36	0.56 – 1.36	0.46 – 1.26	1.04 – 1.84
2000	0.76 – 1.51	0.64 – 1.39	0.53 – 1.28	0.53 – 1.28	0.42 – 1.17	1.05 – 1.80
2100	0.74 – 1.43	0.61 – 1.30	0.49 – 1.18	0.49 – 1.18	0.37 – 1.06	1.06 – 1.75

– 1-1/2 HP –
1900	1.10 – 1.91	0.99 – 1.80	0.89 – 1.70	0.89 – 1.70	0.79 – 1.60	1.37 – 2.18
2000	1.09 – 1.91	0.97 – 1.79	0.86 – 1.68	0.86 – 1.68	0.75 – 1.57	1.38 – 2.20
2100	1.07 – 1.90	0.94 – 1.77	0.82 – 1.65	0.82 – 1.65	0.70 – 1.53	1.39 – 2.22

*H = Horizontal, V = Vertical

Model CFM	Available External Static Range					Total Static In.
	2 Row	4 Row	4R/2R	6 Row	6R/2R
	Coil	Coil	Coil	Coil	Coil
*90S()W**	*90S()W2**	*90S()W4**	*90S()W42**	*90S()W6**	*90S()W62**
– 3/4 HP –
2800	0.00 – 0.73	0.00 – 0.58	0.00 – 0.42	0.00 – 0.43	0.00 – 0.27	0.34 – 1.09
3000	0.00 – 0.51	0.00 – 0.35	0.00 – 0.17	0.00 – 0.18	0.00 – 0.00	0.33 – 0.91
3200	0.00 – 0.30	0.00 – 0.13	0.00 – 0.00	0.00 – 0.00	0.00 – 0.00	0.31 – 0.74

– 1 HP –
2800	0.38 – 1.17	0.23 – 1.02	0.07 – 0.86	0.08 – 0.87	0.00 – 0.71	0.74 – 1.53
3000	0.33 – 0.92	0.17 – 0.76	0.00 – 0.58	0.00 – 0.59	0.00 – 0.41	0.73 – 1.32
3200	0.27 – 0.70	0.10 – 0.53	0.00 – 0.32	0.00 – 0.34	0.00 – 0.14	0.71 – 1.14

– 1-1/2 HP –
2800	0.63 -1.80	0.48 – 1.65	0.32 – 1.49	0.33 – 1.50	0.17 – 1.34	0.99 – 2.16
3000	0.59 -1.74	0.43 – 1.58	0.25 – 1.40	0.26 – 1.41	0.08 – 1.23	0.99 – 2.14
3200

– 2 HP –
2800	1.01 – 1.80	0.86 – 1.65	0.70 – 1.49	0.71 – 1.50	0.55 – 1.34	1.37 – 2.16
3000	0.97 – 0.75	0.81 – 1.63	0.63 – 1.45	0.64 – 1.46	0.46 – 1.28	1.37 – 2.19
3200	0.93 – 1.77	0.76 – 1.60	0.55 – 1.39	0.57 – 1.41	0.37 – 1.21	1.37 – 2.21

*120S()W**	*120S()W2**	*120S()W4**	*120S()W42**	*120S()W6**	*120S()W62**
– 1-1/2 HP –
3800	0.02 – 0.97	0.00 – 0.80	0.00 – 0.63	0.00 – 0.64	0.00 – 0.47	0.41 – 1.36
4000	0.00 – 0.75	0.00 – 0.57	0.00 – 0.38	0.00 – 0.40	0.00 – 0.21	0.37 – 1.18
4200	0.00 – 0.55	0.00 – 0.35	0.00 – 0.15	0.00 – 0.17	0.00 – 0.00	0.33 – 1.01

– 2 HP –
3800	0.51 – 1.65	0.34 – 1.48	0.17 – 1.31	0.18 – 1.32	0.01 – 1.15	0.90 – 2.04
4000	0.43 – 1.42	0.25 – 1.24	0.06 – 1.05	0.08 – 1.07	0.00 – 0.88	0.86 – 1.85
4200	0.36 – 1.20	0.16 – 1.00	0.00 – 0.80	0.00 – 0.82	0.00 – 0.61	0.82 – 1.66

– 3 HP –
3800
4000	0.92 – 1.52	0.74 – 1.34	0.55 – 1.15	0.57 – 1.17	0.38 – 0.98	1.35 – 1.95
4200	0.85 – 1.47	0.65 – 1.27	0.45 – 1.07	0.47 – 1.09	0.28 – 0.88	1.31 – 1.93

*180S()W**	*180S()W2**	*180S()W4**	*180S()W42**	*180S()W6**	*180S()W62**
– 2 HP –
5800	0.24 – 0.92	0.06 – 0.74	0.00 – 0.57	0.00 – 0.57	0.00 – 0.40	0.66 – 1.34
6000	0.20 – 0.77	0.00 – 0.58	0.00 – 0.40	0.00 – 0.40	0.00 – 0.22	0.64 – 1.21
6200	0.16 – 0.63	0.00 – 0.43	0.00 – 0.24	0.00 – 0.24	0.00 – 0.05	0.62 – 1.09

– 3 HP –
5800	0.50 – 1.62	0.32 – 1.44	0.15 – 1.27	0.15 – 1.27	0.00 – 1.10	0.92 – 2.04
6000	0.46 – 1.60	0.27 – 1.41	0.09 – 1.23	0.09 – 1.23	0.00 – 1.05	0.90 – 2.04
6200	0.42 – 1.47	0.22 – 1.27	0.03 – 1.08	0.00 – 1.08	0.00 – 0.89	0.88 – 1.93


*240S()W**	*230S()W2**	*230S()W4**	*230S()W42**	*230S()W6**	*230S()W62**
– 3 HP –
7500	0.08 – 0.79	0.00 – 0.61	0.00 – 0.45	0.00 – 0.45	0.00 – 0.31	0.47 – 1.18
8000	0.00 – 0.45	0.00 – 0.26	0.00 – 0.08	0.00 – 0.08	0.00 – 0.00	0.39 – 0.89
8500	0.00 – 0.13	0.00 – 0.00	0.00 – 0.00	0.00 – 0.00	0.00 – 0.00	0.29 – 0.62

– 5 HP –
7500	0.20 – 1.79	0.00 – 1.61	0.00 – 1.45	0.00 – 1.45	0.00 – 1.31	0.59 – 2.18
8000	0.07 – 1.71	0.00 – 1.52	0.00 – 1.34	0.00 – 1.34	0.00 – 1.17	0.51 – 2.15
8500	0.00 – 1.39	0.00 – 1.18	0.00 – 0.98	0.00 – 0.99	0.00 – 0.79	0.42 – 1.88


*H = Horizontal, V = Vertical

Physical Data – Models 24SHW – 60SHW

UNIT DIMENSIONS

MODEL	UNIT CABINET				OUTLET		ETURN RETURN DUCT CONNECTION
MODEL	AA	BB	CC	DD	EE	FF	GG	HH
24SHW4	37	32-1/2	27	18-7/8	8-3/4	10-7/8	18	16-1/4
36SHW4	37	42	36-1/2	18-7/8	12-1/4	10-7/8	27-1/2	16-1/4
48SHW4	39	43-1/2	38	22-7/8	13-5/8	11-7/8	29	20-1/4
60SHW4	42	50-1/2	45	22-7/8	16	13-7/8	36	20-1/4
24SHW6	37	32-1/2	27	18-7/8	8-3/4	10-7/8	18	16-1/4
36SHW6	37	42	36-1/2	18-7/8	12-1/4	10-7/8	27-1/2	16-1/4
48SHW6	39	43-1/2	38	22-7/8	13-5/8	11-7/8	29	20-1/4
60SHW6	42	50-1/2	48	22-7/8	16	13-7/8	36	20-1/4

STUBOUT LOCATION FOR WATER COILS
A	B	C	D	E	F	G	H	J	K
11-1/4	6-5/16	4-1/2	6-1/2	4-1/2	3-15/16	1	8-15/16	10	12
11-1/4	6-5/16	4-1/2	6-1/2	4-1/2	3-15/16	1	8-15/16	10	12
11-1/4	6-5/16	3-3/4	5-3/4	4-1/2	3-15/16	1	8-15/16	10	12
11-1/4	6-5/16	3-3/4	5-3/4	4-1/2	3-15/16	1	8-15/16	10	12
12-15/16	6-5/16	4-1/2	6-1/2	4-1/2	3-15/16	1	10-5/8	10	13-3/4
12-15/16	6-5/16	4-1/2	6-1/2	4-1/2	3-15/16	1	10-5/8	10	13-3/4
12-15/16	6-5/16	3-3/4	5-3/4	4-1/2	3-15/16	1	10-5/8	10	13-3/4
12-15/16	6-5/16	3-3/4	5-3/4	4-1/2	3-15/16	1	10-5/8	10	13-3/4

Notes:

All drain connections are 3/4” MPT and located on same side as coil connections.
All units have knockouts on both sides for either (standard) or left side coil stub outs. (Looking with airflow) All coil connections must be on the same side of the unit.

GENERAL SPECIFICATIONS

MODEL	NOM. COOL TONS	FACE AREA SQ. FT.	TUBE SIZE	STD. MOTOR HP	VOLTS	PHASE
24SHW	2	2.05	3/8	1/4	115	1
36SHW	3	3.05	3/8	1/3	115	1
48SHW	4	4.0	3/8	1/2	115	1
60SHW	5	5.0	3/8	1/2	115	1

BLOWER SIZE	FILTER SIZE	4 ROW COIL		6 ROW COIL
BLOWER SIZE	FILTER SIZE	MANIFOLD CONNECTION	SHIPPING WEIGHT	MANIFOLD CONNECTION	SHIPPING WEIGHT
9 X 6	16 X 25	7/8” O/D (SWT)	185	7/8” O/D (SWT)	205
9 X 9	16 X 16 (2)	7/8” O/D (SWT)	205	7/8” O/D (SWT)	225
10 X 10	16 X 20 (2)	7/8” O/D (SWT)	230	7/8” O/D (SWT)	265
12 X 12	20 X 20 (2)	1-1/8” O/D (SWT)	290	1-1/8” O/D (SWT)	310

Notes:

All technical specifications subject to change without notice.
Additional charge for optional motors.
When SHW units are used with hot water coil the leaving air temperature must not exceed 150 degrees.
At high altitude conditions, blower motor may cutout air lower LAT. Contact factory for information.
Contact factory for electric heat information (supplied by others)

Physical Data – Models 90SHW – 240SHW
UNIT DIMENSIONS

MODEL	UNIT CABINET			BLOWER OUTLET		RETURN DUCT CONNECTION
MODEL	AA	BB	CC	EE	FF	GG	HH
90SHW4	52-1/2	54	27	19-1/8	16-3/8	45	25-1/4
120SHW4	52-1/2	57	32	19-1/8	16-3/8	48	30-1/4
180SHW4	56-1/2	66	39-1/2	44-3/4	16-3/8	57	37-3/4
240SHW4	62-1/2	66	52	44-3/4	16-3/8	57	50-1/4
90SHW6	52-1/2	54	27	19-1/8	16-3/8	45	25-1/4
120SHW6	52-1/2	57	32	19-1/8	16-3/8	48	30-1/4
180SHW6	56-1/2	66	39-1/2	44-3/4	16-3/8	57	37-3/4
240SHW6	62-1/2	66	52	44-3/4	16-3/8	57	50-1/4

STUBOUT LOCATION FOR WATER COILS
A	B	C	D	E	F	G	H	J	K	L
11-1/8	6-1/8	2-7/16	5-1/8	6-7/16	6-7/16	1	9-3/8	10-1/4	12-5/8	1
11-1/8	6-1/8	2-7/16	5-1/8	6-7/16	6-7/16	1	9-3/8	10-1/4	12-5/8	C 6
11-1/8	6-1/8	2-7/16	5-1/8	6-7/16	6-7/16	1	9-3/8	10-1/4	12-5/8	9-5/16
11-1/8	6-1/8	2-7/16	5-1/8	6-7/16	6-7/16	1	9-3/8	10-1/4	12-5/8	21-3/4
13-5/16	6-1/8	2-7/16	5-1/8	6-7/16	6-7/16	1	11-1/2	10-1/4	14-13/16	1
13-5/16	6-1/8	2-7/16	5-1/8	6-7/16	6-7/16	1	11-1/2	10-1/4	14-13/16	6
13-5/16	6-1/8	2-7/16	5-1/8	6-7/16	6-7/16	1	11-1/2	10-1/4	14-13/16	9-5/16
13-5/16	6-1/8	2-7/16	5-1/8	6-7/16	6-7/16	1	11-1/2	10-1/4	14-13/16	21-3/4

Notes:

All drain connections are 3/4” MPT and located on same side as coil connections.
All units have knockouts on both sides for either (standard) or left side coil stub outs.
(Looking with airflow) All coil connections must be on the same side of the unit.
180SHW and 230SHW models have two blowers. Blower opening size is 16-3/8 X 16-5/8

GENERAL SPECIFICATIONS

MODEL	NOM. COOL TONS	FACE AREA SQ. FT.	S SIZE	STD. MOTOR HP	TUBE VOLTS	PHASE	B LO ER SIZE
90SHW	7-1/2	7.5	1/2	3/4	115/230	1	15 X 15
120SHW	10	9.6	1/2	1-1/2	230/460	3	15 X 15
180SHW	15	14.3	1/2	1-1/2	230/460	3	15 X 12 (2)
240SHW	20	19.1	1/2	3	230/460	3	15 X 12 (2

BLOWER SIZE	FILTER SIZE	4 ROW COIL		6 ROW COIL
BLOWER SIZE	FILTER SIZE	MANIFOLD CONNECTION	SHIPPING WEIGHT	MANIFOLD CONNECTION	SHIPPING WEIGHT
15 X 15	24 X 25 (2)	1-1/8″ O/D (SWT)	450	1-1/8″ O/D (SWT)	475
15 X 15	26 X 29 (2)	1-3/8″ O/D (SWT)	490	1-3/8″ O/D (SWT)	535
15 X 12 (2)	20 X 36.5 (3)	1-3/8″ O/D (SWT)	670	1-3/8″ O/D (SWT)	710
15 X 12 (2	20 X 49 (3)	1-3/8″ O/D (SWT)	835	1-3/8″ O/D (SWT)	880

Notes:

All technical specifications subject to change without notice.
Additional charge for optional motors.
When SHW units are used with hot water coil the leaving air temperature must not exceed 150 degrees.
At high altitude conditions, blower motor may cutout air lower LAT. Contact factory for information.
Contact factory for electric heat information (supplied by others)

SHW SERIES
2 – 5 TON FAN PERFORMANCE

MODEL	NOMINAL CFM	COIL FACE VELOCITY FPM	TOTAL STATIC PRESSURE – INCHES OF WATER
			0.5		0.6		0.7		0.8		0.9
			RPM	HP	RPM	HP	RPM	HP	RPM	HP	RPM	HP
24SHW	600	300	770	1/6	840	1/6	900	1/6	990	1/4	1050	1/4
	700	350	780	1/6	850	1/6	910	1/4	990	1/4	1040	1/4
	800	400	800	1/4	860	1/4	910	1/4	990	1/4	1040	1/4
	900	450	810	1/4	880	1/4	925	1/4	1000	1/4	1050	1/3
	1000	500	830	1/4	900	1/4	950	1/3	1000	1/3	1060	1/3
36SHW	1000	333	805	1/4	880	1/4	940	1/3	1000	1/3	1060	1/3
	1100	367	810	1/4	890	1/3	940	1/3	1000	1/3	1050	1/2
	1200	400	820	1/3	900	1/3	950	1/3	1005	1/2	1050	1/2
	1300	434	840	1/3	905	1/3	960	1/3	1010	1/2	1060	1/2
	1400	466	870	1/3	920	1/3	980	1/2	1020	1/2	1090	1/2
48SHW	1400	350	720	1/3	775	1/3	825	1/2	870	1/3	910	1/2
	1500	375	740	1/3	785	1/2	830	1/2	875	1/2	920	1/2
	1600	400	750	1/2	800	1/2	840	1/2	890	1/2	925	3/4
	1700	425	770	1/2	810	1/2	860	1/2	895	1/2	930	3/4
	1800	450	785	1/2	825	1/2	870	1/2	910	1/2	945	3/4
60SHW	1800	360	580	1/2	630	1/2	680	1/2	725	1/2	770	3/4
	1900	380	580	1/2	630	1/2	680	1/2	725	1/2	775	3/4
	2000	400	590	1/2	635	1/2	680	1/2	730	1/2	770	3/4
	2100	420	600	1/2	640	1/2	690	1/2	730	3/4	770	3/4
	2200	440	600	1/2	645	1/2	690	1/2	735	3/4	775	3/4

NOMINAL CFM

COIL FACE VELOCITY FPM

TOTAL STATIC PRESSURE – INCHES OF WATER

1.0

1.2

1.4

1.6

1.8

2.0

RPM

600

300

1105

1/4

1210

1/3

1310

1/3

1420

1/3

1510

1/2

– – –

700

350

1100

1/4

1200

1/3

1300

1/3

1405

1/2

1500

1/2

– – –

800

400

1100

1/3

1195

1/3

1295

1/2

1395

1/2

1470

1/2

– – –

900

450

1100

1/3

1190

1/3

1290

1/2

1390

1/2

1460

1/2

– – –

1000

500

1110

1/3

1200

1/2

1295

1/2

1390

1/2

1450

3/4

– – –

1000

333

1110

1/2

1230

1/2

1335

1/2

1440

3/4

1540

3/4

– – –

1100

367

1110

1/2

1215

1/2

1325

1/2

1425

3/4

1520

3/4

– – –

1200

400

1110

1/2

1210

1/2

1315

3/4

1415

3/4

1500

3/4

– – –

1300

434

1110

1/2

1220

1/2

1315

3/4

1410

3/4

1490

3/4

– – –

1400

466

1120

1/2

1220

3/4

1320

3/4

1410

3/4

1500

3/4

– – –

1400

350

955

1/2

1050

3/4

1135

3/4

1215

3/4

1300

1380

1500

375

960

1/2

1050

3/4

1135

3/4

1210

3/4

1295

1370

1600

400

970

3/4

1050

3/4

1140

3/4

1210

3/4

1290

1360

1700

425

980

3/4

1065

3/4

1140

3/4

1210

3/4

1290

1350

1800

450

985

3/4

1070

3/4

1150

3/4

1215

1280

– – –

1800

360

820

3/4

900

3/4

975

3/4

1050

1125

1200

1-1/2

1900

380

815

3/4

895

3/4

970

3/4

1045

1120

1190

1-1/2

2000

400

815

3/4

890

3/4

965

1040

1110

1180

1-1/2

2100

420

815

3/4

885

3/4

960

1035

1105

1-1/2

1175

1-1/2

2200

440

815

3/4

885

3/4

960

1030

1100

1-1/2

1165

1-1/2

7-1/2 – 20 TON FAN PERFORMANCE

MODEL	NOMINAL CFM	COIL FACE VELOCITY FPM	TOTAL STATIC PRESSURE – INCHES OF WATER
			0.6		0.7		0.8		0.9		1.0
			RPM	HP	RPM	HP	RPM	HP	RPM	HP	RPM	HP
90SHW	2500	333	580	1/2	600	3/4	640	3/4	690	3/4	710	3/4
	2750	366	580	1/2	605	3/4	640	3/4	690	3/4	710	3/4
	3000	400	580	3/4	610	3/4	640	3/4	680	3/4	710	1
	3250	433	590	3/4	630	1	660	1	700	1	715	1
	3500	466	605	1	635	1	670	1	700	1	720	1
120SHW	3400	354	600	1	630	1	670	1	700	1	730	1-1/2
	3700	385	610	1	650	1	680	1-1/2	705	1-1/2	740	1-1/2
	4000	417	630	1-1/2	670	1-1/2	695	1-1/2	710	1-1/2	750	1-1/2
	4300	448	650	1-1/2	685	1-1/2	705	1-1/2	730	1-1/2	770	2
	4600	480	670	1-1/2	700	2	720	2	760	2	790	2
180SHW	5200	364	590	1-1/2	620	1-1/2	650	1-1/2	690	1-1/2	710	1-1/2
	5600	391	600	1-1/2	630	1-1/2	670	1-1/2	700	1-1/2	720	2
	6000	420	610	1-1/2	640	1-1/2	680	1-1/2	700	2	730	2
	6400	447	625	2	660	2	690	2	710	2	740	3
	6800	475	640	2	680	2	700	3	720	3	760	3
240SHW	6000	314	610	1-1/2	640	1-1/2	670	1-1/2	700	2	730	2
	7000	366	640	2	690	2	710	3	740	3	760	3
	8000	419	700	3	720	3	750	3	790	3	800	3
	9000	470	730	5	760	5	800	5	810	5	830	5
	10000	500	800	5	820	5	840	5	880	5	900	5

NOMINAL CFM	COIL FACE VELOCITY FPM	TOTAL STATIC PRESSURE – INCHES OF WATER
		1.2		1.4		1.6		1.8		2.0
		RPM	HP	RPM	HP	RPM	HP	RPM	HP	RPM	HP
2500	333	790	3/4	850	1	915	1-1/2	990	1-1/2	1030	1-1/2
2750	366	780	1	840	1	905	1-1/2	980	1-1/2	1020	1-1/2
3000	400	780	1	835	1-1/2	900	1-1/2	970	1-1/2	1010	1-1/2
3250	433	790	1-1/2	840	1-1/2	900	1-1/2	950	1-1/2	1005	2
3500	466	790	1-1/2	845	1-1/2	900	1-1/2	950	2	1005	2
3400	354	790	1-1/2	850	1-1/2	900	1-1/2	950	2	1005	2
3700	385	800	1-1/2	855	1-1/2	905	2	950	2	1005	2
4000	417	805	1-1/2	860	2	910	2	960	2	1005	2
4300	448	820	2	875	2	915	3	970	3	1010	3
4600	480	830	2	890	3	930	3	980	3	1015	3
5200	364	780	2	830	2	900	2	950	3	1000	3
5600	391	790	2	840	2	905	3	950	3	1000	3
6000	420	795	2	850	3	910	3	960	3	1000	3
6400	447	800	3	860	3	915	3	970	3	1000	5
6800	475	810	3	870	3	920	5	975	5	1005	5
6000	314	795	2	850	3	910	3	960	3	1000	3
7000	366	810	3	880	3	920	5	960	5	1000	5
8000	419	850	5	900	5	940	5	990	5	1020	5
9000	470	890	5	920	5	980	5	– – –	– – –	– – –	– – –
10000	500	– – –	– – –	– – –	– – –	– – –	– – –	– – –	– – –	– – –	– – –

Notes:

Shaded area indicates the R.P.M. and C.F.M. range of the standard motor and pulleys.
To determine available brake horsepower (BHP), take above nominal HP and multiply as follows:
For 1/4 HP to 3/4 HP motors: BHP = nominal X 1.25
For 1 HP to 5 HP motors: BHP = nominal X 1.15
Special pulleys and motors can be factory furnished at an additional charge.
Horsepower tabulated indicates minimum recommended motor H.P.
Rated in accordance with ARI Standard 430.

24SHW
CHILLED WATER COOLING CAPACITIES

HOT WATER HEATING CAPACITIES

24SHW4 / 24SVW4 (4 ROW COIL)
180OF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
600 800 1000	3.0	1.2	47.5 56.4 64.3	143 135 130	148 142 137
600 800 1000	6.0	4.4	52.0 63.2 73.3	150 143 138	163 159 156
600 800 1000	9.0	9.3	53.6 65.8 76.8	153 146 141	168 165 163

* 70 degree return air

24HWK (2 ROW COIL)
180OF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
600 800 1000	3.0	0.9	33.3 38.4 42.9	121 115 110	158 154 151
600 800 1000	6.0	3.2	36.6 43.2 49.0	126 120 115	168 166 164
600 800 1000	9.0	6.7	37.9 45.3 51.8	128 122 118	172 170 168

Notes:

See page 22 for hot water heating correction factors.
Optional 6 row coils should not be used for heating.
Optional 2 row hot water coils can be factory or field installed.
When these units are used for hot water heating the leaving air temperature must not exceed 150 degrees.
At high altitude conditions, blower motor may cutout at a lower LAT. Contact factory for information.

36SHW
CHILLED WATER COOLING CAPACITIES

HOT WATER HEATING CAPACITIES

36SHW4 / 36SVW4 (4 ROW COIL)
180OF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
1000 1200 1400	4.0	2.0	75.5 83.9 91.7	140 135 131	142 138 134
1000 1200 1400	8.0	7.5	83.9 94.7 105.1	148 143 140	159 156 154
1000 1200 1400	12.0	16.3	86.8 98.9 110.1	150 146 143	165 163 162

* 70 degree return air

36HWK (2 ROW COIL)
180OF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
1000 1200 1400	4.0	1.6	53.3 58.7 65.4	119 115 112	153 150 148
1000 1200 1400	8.0	6.1	59.4 66.2 72.5	125 121 118	165 164 162
1000 1200 1400	12.0	13.1	61.5 68.7 75.4	127 123 120	170 168 167

* 70 degree return air

Notes:

See page 22 for hot water heating correction factors.
Optional 6 row coils should not be used for heating.
Optional 2 row hot water coils can be factory or field installed.
When these units are used for hot water heating the leaving air temperature must not exceed 150 degrees.
At high altitude conditions, blower motor may cutout at a lower LAT. Contact factory for information.

48SHW
CHILLED WATER COOLING CAPACITIES

HOT WATER HEATING CAPACITIES

48SHW4 / 48SVW4 (4 ROW COIL)
180^OF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
1400 1600 1800	6.0	3.9	106.3 114.9 123.3	140 137 133	145 142 139
1400 1600 1800	10.0	10.3	114.9 125.3 135.3	146 143 140	157 155 153
1400 1600 1800	13.0	17.0	118.0 129.4 140.0	148 145 142	162 160 158

* 70 degree return air

48HWK (2 ROW COIL)
180^OF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
1400 1600 1800	5.0	2.0	72.8 78.0 82.7	118 115 113	151 149 147
1400 1600 1800	8.0	4.8	79.2 85.4 91.4	122 119 117	160 159 157
1400 1600 1800	12.0	10.4	83.3 90.2 97.0	125 122 120	166 165 164

* 70 degree return air
Notes:

See page 22 for hot water heating correction factors.
Optional 6 row coils should not be used for heating.
Optional 2 row hot water coils can be factory or field installed.
When these units are used for hot water heating the leaving air temperature must not exceed 150 degrees.
At high altitude conditions, blower motor may cutout at a lower LAT. Contact factory for information.

60SHW
CHILLED WATER COOLING CAPACITIES

HOT WATER HEATING CAPACITIES

60SHW4 / 60SVW4 (4 ROW COIL)
180^OF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
1800 2000 2200	6.0	1.8	128.0 136.2 143.8	136 133 131	137 135 132
1800 2000 2200	11.0	5.7	142.6 152.9 162.6	143 141 138	154 152 150
1800 2000 2200	16.0	11.6	149.6 160.8 171.4	147 144 142	161 160 159

* 70 degree return air

60HWK (2 ROW COIL)
180^OF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
1800 2000 2200	6.0	3.1	93.1 98.2 103.1	118 116 113	149 147 145
1800 2000 2200	9.0	6.6	100.4 106.5 112.6	122 119 117	158 156 155
1800 2000 2200	12.0	11.5	104.4 111.0 117.7	124 121 120	163 162 160

* 70 degree return air
Notes:

See page 22 for hot water heating correction factors.
Optional 6 row coils should not be used for heating.
Optional 2 row hot water coils can be factory or field installed.
When these units are used for hot water heating the leaving air temperature must not exceed 150 degrees.
At high altitude conditions, blower motor may cutout at a lower LAT. Contact factory for information.

90SHW
CHILLED WATER COOLING CAPACITIES

HOT WATER HEATING CAPACITIES

90SHW4 / 90SVW4 (4 ROW COIL)
180^OF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
2500 3000 3500	10.0	2.2	207.8 232.4 255.2	147 142 137	138 133 129
2500 3000 3500	15.0	4.7	222.4 251.1 278.5	152 148 144	150 146 143
2500 3000 3500	22.0	9.8	232.8 265.1 295.7	156 152 148	159 156 153

* 70 degree return air

90HWK (2 ROW COIL)
180^OF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
2500 3000 3500	8.0	1.0	146.2 160.5 171.5	124 120 115	143 140 137
2500 3000 3500	14.0	2.8	162.3 180.4 196.2	130 126 122	157 154 153
2500 3000 3500	21.0	6.1	171.1 191.2 209.1	133 129 125	164 162 160

* 70 degree return air
Notes:

See page 22 for hot water heating correction factors.
Optional 6 row coils should not be used for heating.
Optional 2 row hot water coil can be factory installed in either the reheat (std.) or preheat positions.
When these units are used with hot water coil the leaving air temperature must not exceed 150 degrees.
At high altitude conditions, blower motor may cutout at a lower LAT. Contact factory for information.

120SHW
CHILLED WATER COOLING CAPACITIES

HOT WATER HEATING CAPACITIES

120SHW4 / 120SVW4 (4 ROW COIL)
180^OF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
3400 4000 4600	12.0	2.0	273.2 302.6 328.3	144 140 136	135 130 125
3400 4000 4600	21.0	5.8	301.4 337.0 370.7	152 148 144	151 148 145
3400 4000 4600	30.0	11.4	314.4 352.9 389.8	155 152 148	159 156 154

* 70 degree return air

120HWK (2 ROW COIL)
180^OF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
3400 4000 4600	11.0	1.0	198.5 215.8 229.4	124 120 116	144 140 138
3400 4000 4600	18.0	2.8	217.8 239.8 257.8	129 125 122	156 153 151
3400 4000 4600	25.0	5.3	227.8 251.9 272.0	132 128 125	162 160 158

* 70 degree return air
Notes:

See page 22 for hot water heating correction factors.
Optional 6 row coils should not be used for heating.
Optional 2 row hot water coil can be factory installed in either the reheat (std.) or preheat positions.
When these units are used with hot water coil the leaving air temperature must not exceed 150 degrees.
At high altitude conditions, blower motor may cutout at a lower LAT. Contact factory for information.

180SHW
CHILLED WATER COOLING CAPACITIES

HOT WATER HEATING CAPACITIES

180SHW4 / 180SVW4 (4 ROW COIL)
180^OF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
5200 6000 6800	18.0	2.0	411.0 449.4 483.2	143 139 136	134 130 126
5200 6000 6800	30.0	5.3	450.7 496. 540.5	150 147 143	150 147 144
5200 6000 6800	42.0	10.1	471.7 521.8 570.0	154 150 148	157 155 153

* 70 degree return air

180HWK (2 ROW COIL)
180^OF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
5200 6000 6800	17.0	1.9	308.7 332.3 352.6	125 121 118	144 141 138
5200 6000 6800	25.0	4.1	332.3 360.2 386.1	129 125 123	153 151 149
5200 6000 6800	35.0	8.0	347.8 378.5 407.5	132 128 125	160 158 157

Notes:

See page 22 for hot water heating correction factors.
Optional 6 row coils should not be used for heating.
Optional 2 row hot water coil can be factory installed in either the reheat (std.) or preheat positions.
When these units are used with hot water coil the leaving air temperature must not exceed 150 degrees.
At high altitude conditions, blower motor may cutout at a lower LAT. Contact factory for information.

240SHW
CHILLED WATER COOLING CAPACITIES

HOT WATER HEATING CAPACITIES

240SHW4 / 230SVW4 (4 ROW COIL)
180^OF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
6000 8000 10000	40.0	5.2	547 664 768	154 147 141	153 147 142
6000 8000 10000	50.0	8.0	561 687 799	157 150 144	158 153 148
6000 8000 10000	60.0	11.3	571 702 819	158 151 146	161 157 153

* 70 degree return air

240HWK (2 ROW COIL)
180ºF ENTERING WATER TEMPERATURE
CFM	GPM	WTR. P.D. FT.	TOTAL MBH	LVG. AIR OF	LVG. WTR OF
6000 8000 10000	15.0	0.9	323 369 415	120 113 108	137 131 125
6000 8000 10000	25.0	2.3	361 420 457	126 119 112	151 146 144
6000 8000 10000	35.0	4.3	382 449 494	192 122 116	158 154 152

* 70 degree return air
Notes:

See page 22 for hot water heating correction factors.
Optional 6 row coils should not be used for heating.
Optional 2 row hot water coil can be factory installed in either the reheat (std.) or preheat positions.
When these units are used with hot water coil the leaving air temperature must not exceed 150 degrees.
At high altitude conditions, blower motor may cutout at a lower LAT. Contact factory for information.

HOT WATER HEATING CORRECTION FACTORS

ENTERING AIR TEMP. (ºF)	ENTERING WATER TEMPERATURE (ºF)
ENTERING AIR TEMP. (ºF)	100	110	120	130	140	150	160	170	180
50	0.455	0.545	0.636	0.727	0.818	0.909	1.000	1.091	1.182
55	0.409	0.500	0.591	0.682	0.773	0.864	0.955	1.045	1.136
60	0.363	0.455	0.545	0.636	0.727	0.818	0.909	1.000	1.091
65	0.318	0.409	0.500	0.591	0.682	0.773	0.864	0.955	1.045
70	0.272	0.363	0.455	0.545	0.636	0.727	0.818	0.909	1.000
75	0.227	0.318	0.409	0.500	0.591	0.682	0.773	0.864	0.955
80	0.182	0.272	0.363	0.455	0.545	0.636	0.727	0.818	0.909

Notes:

To determine heating capacity at other than 180 deg. E.W.T. and 70 deg. E.A.T. multiply the selected heating capacity at 180 deg. times the appropriate correction factor from above chart.
These correction factors may be used on all First Co. published 180 deg. heating capacities.
When SHW units are used for hot water heating the leaving air temperature must not exceed 150 degrees. At high altitude conditions, blower motor may cutout at a lower LAT. Contact factory for information.

GUIDE SPECIFICATIONS
Furnish and install First Co. SHW Series Blower – Coil units as indicated on the plans.
CABINETS
Cabinets shall be manufactured of heavy gauge galvanized steel. The entire interior of the cabinet shall be insulated with one inch thick IAQ type insulation. Removable access panels shall be provided on both sides of the cabinet for maintenance and service. All cabinets shall have 2” supply and 1” return flanges.
INSULATION
The entire interior of the cabinet shall be insulated with one (1) inch insulation. This insulation must meet the requirements of ASTM C 1071, ASTM G 21, ASTM G 22, NFPA 90A, UL-181, and the cleaning practices of NAIMA.
MOTOR / BLOWERS
Blowers shall be resiliently mounted, with ball bearings, forward curved blade, and of centrifugal type. Each wheel shall be dynamically balanced for smooth, quiet operation. Blowers shall be belt driven with field adjustable pulleys to permit variations in static pressure and air requirements. Standard motors are 1725 RPM either single or three phase. All motors to be field or factory installed and wired at voltage specified by customer.
COILS
All SVW series coils shall consist of aluminum fins mechanically bonded onto 3/8” or 1/2” OD seamless copper tubing. All coils shall be leak tested at 350 PSIG minimum air pressure. Manual air vents shall be standard on all coils. Drain pans shall be coated for corrosion protection.
FILTERS
One inch throw away filters are standard in 2-5 ton SHW units. One inch permanent filters are provided as standard in 7-20 ton SHW units. Filters shall be accessible without tools.
LISTING
All standard motors are ETL Listed. All air handlers shall be rated in accordance with ARI Standard 430. Standard motors have internal overload protection. Therefore, units shipped with standard motors will be ETL listed. Most non-standard motors (i.e. 575V, 2-speed, TEFC, some 50 Hz., etc.) are not available with internal overload protection. Therefore, most units shipped with non-standard motors can be ETL listed with the addition of a factory installed motor starter (contact the factory for starter information and ETL verification.)

FIRST CO.
P.O. BOX 270969 – DALLAS, TEXAS 75227
PH. (214) 388-5751 | [email protected]
WWW.FIRSTCO.COM

References

Firstco

First Co Shw Series Hydronic 2-20 Tons Horizontal Chilled Water Instruction Manual

SHW SERIES Hydronic 2-20 Tons Horizontal Chilled Water

SHW SERIES

Mixing Boxes

Dimensions:

Features:

COMPONENT STATIC RESISTANCE

UNIT SELECTION PROCEDURE

SHW MOTOR DRIVE ASSEMBLY SELECTION CHART

Physical Data – Models 24SHW – 60SHW

GENERAL SPECIFICATIONS

HOT WATER HEATING CORRECTION FACTORS

References

Documents / Resouces

Related Manuals

PART NUMBER	FOR UNIT MODEL	MANIFOLD CONNECTIONS
24HWK	24SHW/SVW	7/8” OD
36HWK	36SHW/SVW
48HWK	48SHW/SVW
60HWK	60SHW/SVW
90HWK	90SHW/SVW	1-1/8” OD
120HWK	120SHW/SVW	1-3/8” OD
180HWK	180SHW/SVW
240HWK	230SHW/SVW

PART NUMBER	FOR UNIT MODEL	DEPTH (1)
24DP	24SHW	6”
36DP	36SHW
48DP	48SHW
60DP	60SHW
90DP	90SHW
120DP	120SHW
180DP	180SHW
240DP	230SHW