Ameristar A4ah4p24a1b60c 2.0 Ton Convertible Air Handler Instructions (+ PDF)

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2.0 Ton
Convertible Air Handler
A4AH4P24A1B60C

Contents hide

1 Outline Drawing

2 Product Specifications

3 Fixed Orifice Superheat Charging Table

4 Heater Pressure Drop Table A4AH4 Air Handler Models

5 Performance and Electrical Data

6 Features and Benefits

7 Documents / Resources

7.1 References

8 Related Posts

Outline Drawing

MINIMUM UNIT CLEARANCE TABLE
	SERVICE CLEARANCE (RECOMMENDED)
SIDES	2″
FRONT	21″
BACK	0″
INLET DUCT	I”
OUTLET DUCT	N/A

NOTE: THIS UNIT IS APPROVED FOR INSTALLATION CLEARANCES TO COMBUSTIBLE MATERIAL AS STATED ON THE UNIT RATING NAMEPLATE

PRODUCT DIMENSIONS
Air Handler Model	A	B	C	D	E	F	H	Flow Control Gas Line	Braze
A4AH4P24	45.	18.50	16.50	17.	5.	7.	18.	Orifice	3/4
All dimensions are in inches

Product Specifications

MODEL	A4AH4P24A1B60C
RATED VOLTS/PH/HZ	208-230/1/60
RATINGS(a)	See O.D. Specifications
INDOOR COIL — Type	Plate Fin
Rows — F.P.I.	3 – 14
Face Area (sq. ft.)	4.37
Tube Size (in.)	3/8
Refrigerant Control	0.059 Orifice Piston
Drain Conn. Size (in.)(b)	3/4 NPT
DUCT CONNECTIONS	See Outline Drawing
INDOOR FAN — Type	Centrifugal
Diameter-Width (In.)	11 X 6
No. Used	1
Drive – No. Speeds	Direct – 3
CFM vs. in. w.g.	See Fan Performance Table
No. Motors — H.P.	1 – 1/5
Motor Speed R.P.M.	825
Volts/Ph/Hz	208-230/1/60
F.L. Amps	1.2
FILTER
Filter Furnished? (c)	No
REFRIGERANT	R-410A/R-22
Ref. Line Connections	Brazed

Coupling or Conn. Size — in. Gas	3/4
Coupling or Conn. Size — in. Liq.	3/8
DIMENSIONS	H x W x D
Crated (In.)	46 x 21 x 24
Uncrated	45-1/8 x 18-1/2 x 21-1/8
WEIGHT
Shipping (Lbs.) / Net (Lbs.)	116/110

(a)These Air Handlers are A.H.R.I certified with various Split System Air Conditioners and Heat Pumps (AHRI STANDARD 210/240). Refer to the Split System Outdoor Unit Product Data Guides for performance data.
(b) 3/4” Male Plastic Pipe (Ref: ASTM 1785–76)
(c) Remote filter required.
Minimum Airflow CFM

A4AH4P24A1B60C
Heater	Minimum Heat Speed Tap
	With Heat Pump	Without Heat Pump
BAYHTR1504BRK, BAYHTR1504LUG, BAYHTR1505BRK, BAYHTR1505LUG	Med	Low
BAYHTR1508BRK, BAYHTR1508LUG, BAYHTR1510BRK, BAYHTR1510LUG, BAYHTR3510LUG	Med	Low

Fixed Orifice Superheat Charging Table

	Indoor Wet Bulb Temp (F)
Outdoor Dry Bulb Temperature (F)		50	51	52	53	54	55	56	57	58	59	60	61	62	63	64	65	66	67	68	69	70	71	72	73	74	75	76	77	78
	55	7	9	10	11	12	14	15	17	18	20	21	23	24	26	27	29	30
	60	5	7	8	9	10	12	13	15	16	18	19	21	22	24	25	27	28	30	31
	65			4	6	8	10	11	13	14	16	17	18	19	21	22	24	25	27	28	27	31
	70					5	7	8	10	11	13	14	16	17	18	19	21	22	24	25	27	28	30	31
	75							5	6	7	9	10	12	14	16	18	19	21	22	24	26	28	29	31	32
	80									4	6	7	9	10	11	12	14	16	18	19	21	23	25	26	28	29	31	33
	85											4	6	7	9	10	13	14	16	18	20	21	23	24	26	28	29	30	31	32
	90													4	6	8	10	11	13	14	16	18	20	22	24	25	27	28	30	31
	95															4	6	8	10	13	14	16	18	20	22	23	25	26	28	29
	100																	6	8	10	12	13	16	18	20	21	23	25	27	29
	105																	4	6	7	9	11	13	15	18	20	22	24	26	28
	110																			4	7	9	11	13	16	18	21	23	26	28
	115																					6	9	12	14	16	19	21	24	26
Using a digital psychrometer, measure the return air wet-bulb temperature at the unit just before the coil. Also measure the outdoor dry-bulb temperature. Use these temperatures to locate the target superheat on the charging table. Do not attempt to charge the system if these conditions fall outside of this charging table. ADD refrigerant to DECREASE total superheat. REMOVE refrigerant to INCREASE total superheat. Always allow 10 to 15 minutes of operation after any refrigerant or air flow change prior to determining the final superheat.

Heater Pressure Drop Table
A4AH4 Air Handler Models

Airflow CFM	Number of Racks				Heater Racks
	1	2	3	4	Heater Model	No. of Racks
	Air Pressure Drop — Inches W.G.				BAYHTR1504	1
1800	0.02	0.04	0.06	0.14	BAYHTR1505	1
1700	0.02	0.04	0.06	0.14	BAYHTR1508	2
1600	0.02	0.04	0.06	0.13	BAYHTR1510	2
1500	0.02	0.04	0.06	0.12	BAYHTR3510	3
1400	0.02	0.04	0.06	0.12	BAYHTR1517	3
1300	0.02	0.04	0.05	0.11	BAYHTR3517	3
1200	0.01	0.04	0.05	0.10	BAYHTR1525	4
1100	0.01	0.03	0.05	0.09
1000	0.01	0.03	0.04	0.09
900	0.01	0.03	0.04	0.08
800	0.01	0.03
700	0.01	0.02
600	0.01	0.02

Performance and Electrical Data

See Product Data or Air Handler nameplate for approved combinations of Air Handlers and Heaters.
Heater model numbers may have additional suffix digits.
Table 1. Air Flow Performance

A4AH4P24A1B60C(a)
EXTERNAL STATIC (in w.g)	AIRFLOW
EXTERNAL STATIC (in w.g)	Speed Taps — 230 VOLTS			Speed Taps — 208 VOLTS
	High	Med	Low †	High	Med	Low †
0.1	1094	927	773	1052	849	658
0.2	1032	880	735	990	807	624
0.3	955	818	678	915	750	578
0.4	864	739	601	826	679	518
0.5	759	645	505	723	591	441
0.6	639	534	389	606	490
0.7	505	408		476	374
1Values are with wet coil, no filter, and no heaters 2CFM Correction for dry coil = Add 3% 3.† = Factory setting

For A4AH4P24A1B60C, the recommended speed tap is medium at 0.4” external static pressure.
Table 2. Electrical Data

A4AH4P24A1B60C
Heater Model No.	No. of Circuits/ Phases	240 Volt					208 Volt
		Capacity		Heater Amps per Circuit	Minimum Circuit Ampacity	Maximum Overload Protection	Capacity		Heater Amps per Circuit	Minimum Circuit Ampacity	Maximum Overload Protection
		kW	BTUH	Heater Amps per Circuit	Minimum Circuit Ampacity	Maximum Overload Protection	kW	BTUH	Heater Amps per Circuit	Minimum Circuit Ampacity	Maximum Overload Protection
No Heater				1.2 *	2	15			1.2 *	2	15
BAYHTR1504BRK BAYHTR1504LUG	1/1	3.84	13100	16.0	22	25	2.88	9800	13.8	19	20
BAYHTR1505BRK BAYHTR1505LUG	1/1	4.80	16400	20.0	27	30	3.60	12300	17.3	23	25
BAYHTR1508BRK BAYHTR1508LUG	1/1	7.68	26200	32.0	42	45	5.76	19700	27.7	36	40
BAYHTR1510BRK BAYHTR1510LUG	1/1	9.60	32800	40.0	52	60	7.20	24600	34.6	45	45
BAYHTR3510LUG	1/3	9.60	32800	23.1	30	30	7.20	24600	20.0	26	30
* = Motor Amps

Features and Benefits

Galvanized metal cabinet with captured foil face insulation
2% or less air leakage
R-4.2 Insulating Value
Multi-Position UP/Down Flow, Horizontal Left /Right
ALL Aluminum Coil
Electric Heaters with polarized plug connections (sold as accessory)
R-410A/R-22 Orifice Piston
ECM Motor ((33..55 –– 55 TToonn MMooddeellss ))
Low Voltage Pigtail Connections
Draw Through Design
Horizontal Drain pan
Single Color
Fused 24V Power
55-year warranty
optional extended warranty ava bail Condensate management kit is required for all 5-ton air handler models installed in downflow applications.

About Trane and American Standard Heating and Air Conditioning
Trane and American Standard create comfortable, energy-efficient indoor environments for residential applications. For more information, please visit www.trane.com or www.americanstandardair.com.

The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice.
We are committed to using environmentally conscious print practices.
A4AH4P24A1B-SUB-1D-EN 09 Mar 2022
Supersedes A4AH4P24A1B-SUB-1C-EN (September 2020)
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