5 Ton 13.8 SEER2 100,000 Btu 80% Afue Gas System
Product Information
The product is a Multi-Position Cased Coil that is cooling and
heat pump compatible. It comes with a factory-installed R410a
metering device. The unit dimensions vary depending on the model,
with different heights, widths, and supply duct sizes. The coil can
be positioned for bottom return air in the upflow and horizontal
right applications, and for top return air in the downflow and
horizontal left applications. The coil must be installed downstream
(in the air outlet) of the furnace for furnace applications. The
coil also comes with a factory-installed heat shield on the drain
pan.
Product Usage Instructions
- Safety: Before using the unit, thoroughly read
the safety instructions provided in the manual. - General: Position the coil according to the
application (upflow, downflow, horizontal right, or horizontal
left) and ensure it is installed downstream of the furnace for
furnace applications. - Unit Dimensions: Refer to the table provided
in the manual to determine the specific dimensions of your unit
based on the model. - Installation Instructions: Follow the
installation instructions provided in section 3 of the manual,
including pre-installation instructions, trap connection, and drain
application. - Refrigerant Connections: Connect the
refrigerant according to the instructions provided in section 5 of
the manual. - Piston/TXV Installation: If necessary, install
the piston as described in section 6.1 of the manual. Optionally,
you can install a TXV kit as described in section 6.2. - Air Flow Performance: Ensure proper air flow
performance by following the guidelines provided in section 7 of
the manual.
Please keep the manual for future reference and consult it
whenever necessary.
INSTALLER’S GUIDE Cased Coil
Multi-Position Cased Coils Cooling and Heat Pump Compatible Factory Installed R410a Metering Device
Thank you very much for purchasing our product, Before using your unit , please read this manual carefully and keep it for future reference. The figure shown in this manual is for reference only and may be slightly different from the actual product.
RECOGNIZE THIS SYMBOL AS AN INDICATION OF IMPORTANT SAFETY INFORMATION
WARNING
These instructions are intended as an aid to qualified licensed service personnel for proper installation, adjustment and operation of this unit. Read these instructions thoroughly before attempting installation or operation. Failure to follow these instruction may result in improper installation,adjustment, service or maintenance possibly resulting in fire, electrical shock, property damage, personal injury or death.
WARNING
This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.
WARNING
Proposition 65: This appliance contains fiberglass insulation. Respirable particles of fiberglass are known to the state of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.”
CONTENTS
1 SAFETY
01
2 GENERAL
2.1 Unit Dimensions
01
2.2 Codes & Regulations
02
2.3 Inspection Upon Unit Arrival
02
2.4 Clearances
02
3 INSTALLATION INSTRUCTIONS
3.1 Replacement Parts
03
3.2 Pre-installation Instruction
03
3.3 Installation And Trap Connection
03
4 DRAIN APPLICATION
4.1 Condensate Drain Piping
05
4.2 Plastic Drain Pan Installation
05
5 REFRIGERANT CONNECTIONS
06
6 PISTION/TXV INSTALLATION
6.1 Piston Installation
06
6.2 Optional TXV Kit Installation
07
7 AIR FLOW PERFORMANCE
08
1 SAFETY
WARNING
Disconnect all power to the unit before starting any service and maintenance. Failure to do so could cause severe electrical shock resulting in personal injure or death. Installation or servicing of this unit can be hazardous due to parts, components and system pressure. Qualified and proper trained service personnel should perform installation and repair. Failure to do so could cause severe electrical shock resulting in personal injury or death. This is a safety alert symbol indicating a potential hazardous situation ,which could result in personal injury, property and/or product damage or death.
CAUTION
This is a safety alert symbol indicating a potential hazardous situation ,which could result in moderate personal injury, and/or property and product damage.
2 GENERAL
The coil can be positioned for bottom return air in the upflow and horizontal right applications. It must be positioned for top return when in downflow and horizontal left applications. See figure 2-1. For furnace applications, the coil must be installed downstream (in the air outlet) of the furnace
NOTE
This coil comes with a factory-installed heat shield on the drain pan.
2.1 Unit Dimensions
A 19″
21″ W1 21″
H W
Fig.2-1 CASED DIMENSIONS AND COMPONENT LOCATION
01
DIMENSIONAL DATA
MODELS
ACCM3036ANOH ACCM3036BNOH ACCM3036CNOH ACCM3642BNOH ACCM3642CNOH ACCM3642DNOH ACCM4248BNOH ACCM4248CNOH ACCM4248DNOH ACCM4860CNOH ACCM4860DNOH
Unit Dimensions
UNIT HEIGHT UNIT WIDTH “H” IN. [mm] “W” IN. [mm]
SUPPLY DUCT “A” IN. [mm]
20″[508]
14-1/2″[368]
13″[330]
20″[508]
17-1/2″[445]
16″[407]
20″[508]
21″[533]
19-1/2″[495]
26″[660]
17-1/2″[445]
16″[407]
26″[660]
21″[533]
19-1/2″[495]
26″[660]
24-1/2″[622]
23″[584]
30″[762]
17-1/2″[445]
16″[407]
30″[762]
21″[533]
19-1/2″[495]
30″[762]
24-1/2″[622]
23″[584]
30″[762]
21″[533]
19-1/2″[495]
30″[762]
24-1/2″[622]
23″[584]
WEIGHT
“W1″ IN. [mm]
LIQUID LINE/ VAPOR LINE
(LBS.[kg])
13-1/2″[343] 16-1/2″[419] 20″[508] 16-1/2″[419] 20″[508] 23-1/2″[597] 16-1/2″[419] 20″[508] 23-1/2″[597] 20″[508] 23-1/2″[597]
3/8″ / 3/4″ 3/8″ / 3/4″ 3/8″ / 3/4″ 3/8″ / 7/8″ 3/8″ / 7/8″ 3/8″ / 7/8″ 3/8″ / 7/8″ 3/8″ / 7/8″ 3/8″ / 7/8″ 3/8″ / 7/8″ 3/8″ / 7/8″
46[21] 49[22] 51[23] 60[27] 62[28] 66[30] 73[33] 73[33] 77[35] 82[37] 86[39]
2.2 Codes & Regulations
This product is designed and manufactured to comply with national codes.
Installation in accordance with such codes and/or previaling local codes/regulations is the responsibility of the installer. The manufacturer assumes no responsibility for equipment installed in violation of any codes or regulations.
The United States Environmental Protection Agency(EPA) has issued various regulations regarding the introduction and disposal of refigerants. Failure to follow these regulations may harm the environment and can lead to the imposition of substantial fines. Should you have any questions please contact the local office of the EPA.
2.3 Inspection Upon Unit Arrival
As soon as unit is recived, it should be inspected and noted for possible shipping damage during transportation. It is carrier’s responsibility to cover the cost of shipping damage. Manufacturer or distributor will not accept a claim from contractors for any transportation damage.
2.4 Clearnces
Following clearances should be provided during installation a.Maintenance and service access, including coil cleaning and coil assembly removal b.Refigerant piping and connections c.Condensate drain line
Ensure the proper installation, Select a solid and level site.
Ensure enough space required for installation and maintenance.
Fig. 2-2 Front view of the indoor unit clearance (including air duct)
0
1″
1″
24″
Fig. 2-3 Top View of the indoor unit clearance (including air duct)
20″
02
3 INSTALLATION INSTRUCTIONS
3.1 Replacement Parts
Contact your distributor for authorized replacement parts.
3.2 Pre-installation Instrction
Carefully read all instructions for installation prior to installation product. Make sure each step or procedure is understood and any special considerations are taken into account before starting installation. Assemble all tools, hardware and supplies needed to complete the installation. Some items may need to be purchased locally.
Make sure everything needed to install the product is on hand before starting.
3.3 Installation And Trap Connection
1. See Fig. 3-1 for coil installation and drain connection.
2. Installation steps for cased coil: A. Shut off or disconnect gas furnace’s power and remove gas pipe if necessary; B. Disconnect and remove a sufficient portion of the supply ductwork to provide clearance for the cased coil. C. Ensure that the coil is leveled well and seal the gap between coil and furnace. See Fig. 3-1. In case that coil and furnace sizes are not matched, use proper size of sheet metal or other material to fill the gap and seal the gap to prevent air leak; D. Reconnect the ductwork to the coil case, and seal any leakage; E. Reconnect Power line on gas furnace, turn on the furnace to check any sign of leakage.
Fig. 3-1 INSTALLATION OF CASED COIL
03
Fig. 3-2 Transition for horizontal left orientation 3. If the coil is used in connection with an upflow furnace in horizontal left orientation, a sheet metal transition can be installed between the furnace supply air outlet and the evaporator coil supply air inlet to create clearance between coil lineset and furnace flue outlet for A-cabinet non-condensing furnaces and for all cabinet size condensing furnaces. See Fig. 3-2 For A-cabinet non-condensing furnaces, a 6″ transition is needed. For all cabinet size condensing furnaces, a 6.5″ transition is needed. If space is a constraint, the lines/flue interference can be removed by rotating the coil such that the lineset is facing the opposite direction and air flow through the bottom of the A-coil, thus optimizing airflow.
NOTE
Transition not needed with S-Series furnaces.
04
4 DRAIN APPLICATION
4.1 Condensate Drain Piping
Consult local codes for special requirements. To provide extra protection from water damage, it is always recommended to install an additional drain pan, provided by installer under the entire unit with a separate drain line. Manufacturer will not be responsible for any damages due to the failure to follow these reconmmendations.
4.2 Plastic Drain Pan Installation
WARNING
Do not use the coil pan shipped with the unit on OIL furnaces or any appli-cation where the temperature of the drain pan may exceed 275°F. A field fabricated metal drain pan can also be used for these type of applications. Failure to follow this warning may result in property damage and/or personal injury.
NOTE
Use Teflon tape on the drain line connections. Do not use pipe joint compound or PVC/CPVC cement on drain nipple.
The coil drain pan has a primary and an optional secondary drain with 3/4″ NPT female connections; use either PVC or copper pipe and hand tighten to a torque of approximately 37 in-lbs. to prevent damage to the drain pan connection. An insertion depth between 0.355 to 0.485 inches (3-5 turns) should be expected at this torque setting. Use male 3/4″ NPT threaded fitting for outside connection and make sure the drain holes are not blocked. Insulation may be needed for drain line to prevent sweating. Drain pan has two drain connections on each side to provide flexibility of connection and drianage. Make sure pan has proper pitch and plugged if second connection is not used. If the secondary drain line is required, run the line separately from the primary drain and terminate it where it can be easily seen.
NOTE
Water coming from this line means the coil primary drain is plugged and needs clearing.
Install a trap in the drain line below the bottom of the drain pan. If using a copper drain line, solder a short piece of pipe to the connector before installing a drain fitting. DO NOT over torque the 3/4” copper connector to the plastic drain connection. Use a wet rag or heatsink material on the short piece to protect plastic drain pan, complete the rag or heatsink material on the short piece to protect plastic drain pan, complete the drain line installion (Fig. 4-1). Ues (Fig. 4-2) as a template for typical drain pipe routing. This figure shows how to avoid interference with vent piping.
Fig. 4-1 DRAIN LINE INSTALLATION
Fig. 4-2 DRAIN PIPE ROUTING
05
5 REFRIGERANT CONNECTIONS
CAUTION
Gently remove the sealing plug of vapor line, use one wrench to fix valve base, loose the nut with another wernch, take out the flange pad and sealing ring.
To prevent refrigerant leak, use proper tools to ensure clean, burr-free cut.
CAUTION
TXV bulb MUST be protected (wrapped with wet rag) or removed, while brazing the tubing. Overheating of the sensing bulb will affect the fuctional characteristics and performance of the comfort coil.
Use brazing shield when brazing close to the cabinet surface and wet rag to protect rubber grommet. Brazing alloy should be at least 5% silver content.
6 PISTION/TXV INSTALLATION
NOTE
A piston does come pre-installed. The piston must be removed before installing a TXV.
6.1 Piston Installation
1. Using a wrench to loosen the nut. Remove the nut and sealing flange. 2. Check the piston sizes for each outdoor/coil combination in Table 6-1 and choose the correct piston size for your combination. 3. If a different size piston is needed for your system combination, remove the pre-installed piston.
NOTE
Avoid pulling the piston sleeve out when removing the pre-installed piston.
4. Choose correct size piston from the doc pack and insert it with correct orientation. 5. Replace outer O-ring with the O-ring provided in the doc pack. 6. Attach the connection pipe with nut and tighten to 1/6th turn past hand-tighten.
NOTE
MUST wrap the nut with a wet rag before brazing.
Fig 6-1
This coil comes with a factory installed piston metering device. See Table 6-1 for factory installed piston size. Some system combinations will require a different sized piston to be field installed.
* Use the piston size recommended by the outdoor unit if available.
* Reference Table 6-2 If the outdoor unit dose not list a piston size.
06
* The ship-with literature bag will contain additional R-410A pistons for most applications.
* Contact your local parts center to order the appropriate piston if it is not included with the literature.
6.2 Optional TXV Kit Installation
Reference TXV kit literature for installation instructions.
1.Use a wrench to loosen the nut and remove the sealing flange and sealing gasket.
2.Take out the connecting pipe from accessory package and braze the connecting pipe onto the refrigeration-out pipe.
3.Install the sealing washers, TXV and flange connection tube.
4.Use a wrench fasten nut and connecting pipe. (18±2N·m).
5.Connect TXV equalizer pipe to the port on the connecting pipe.
6.Fix bulbs on the connecting pipe using use accessory in TXV kit.
Fig 6-2
A TXV may be required to achieve minimum efficiency ratings or for long refrigerant line set applications. Reference AHRI for system combination ratings.
Reference Table 6-2 to charge the system by superheat when using piston.
Reference the outdoor unit installation guide to charge the system when using a TXV.
Table 6-1 Factory installed piston size for each coil model. Additional piston sizes are provided in the ship-with literature bag as necessary.
ACCM
Psiton/orifice sizes
Model 50 52 56 58 60 64 68 70 73 75 80 83 90
3036A
X
X X X* X
3036B
X
X X X* X
3036C
X
X X X* X
3642B
X
XX
X X*
3642C
XX
X X*
3642D
XX
X X*
4248B
X
X
X
X X*
4248C
X
X
X X*
4248D
X
X X*
4860C
X X X X*
4860D
X X X X*
* means that this piston is pre-installed
Table 6.2. Use chart below when matching coil with outdoor unit. Addition piston sizes are provided in the ship-with literature bag as necessary.
Outdoor Unit Capacity (Tons)
1.5 2 2.5 3 3.5 4 5
Piston Size*(R410a)
Piston Kit
52
0052B
58
0058B
63
0063B
70
0070B
75
0075B
83
0083B
90
0090B
Outdoor Unit Capacity (Tons)
1.5 2 2.5 3 3.5 4 5
Piston Size* (R22)
52 58 65 72 78 88 96
Piston Kit
0052B 0058B 0065A 0072B 0078B 0088B 0096B
*Piston size needed for system combination may not be pre-installed.
See Table 6.1 for pre-installed size.
WARNING
Failure to install the proper piston can lead to poor system performance and possible compressor damage.
CAUTION
An improperly charged system will likely cause loss in system performance and may damage the compressor.
Table 6-3 Piston superheat charging chart
Indoor Temperature(°F) Dry Bulb/Wet Bulb
Outdoor 95/79 90/75 85/71 80/67 75/63 70/58
temp(°F)
Superheat
115
23 16 7
5
5
5
110
24 17 9
5
5
5
105
26 19 11
5
5
5
100
27 21 13
7
5
5
95
29 23 16 9
5
5
90
30 25 18 12 5
5
85
35 26 20 14 8
5
80
34 28 22 17 11 5
75
35 30 24 19 13 6
70
37 32 26 21 16 10
65
38 34 29 24 19 13
60
40 36 31 27 22 17
55
41 37 33 29 25 21
NOTE
Chart is based on 400CFM/Ton indoor airflow and 50% relative humidity.If indoor relative humidity is above 70% or below 20%, use indoor wet bulb temperature only. Airflow range is 375 to 425 CFM/Ton
07
7 AIR FLOW PERFORMANCE
Airflow performance [CFM VS Pressure drop]
Model ACCM3036ANOH ACCM3036BNOH ACCM3036CNOH ACCM3642BNOH ACCM3642CNOH ACCM3642DNOH ACCM4248BNOH ACCM4248CNOH ACCM4248DNOH ACCM4860CNOH ACCM4860DNOH
Pressure drop charactertics for cooling and heat pump coils
Pressure drop (Inchs of water)
0.05
0.1
0.15
0.2
0.25
0.3
307
485
618
729
823
911
327
527
682
810
925
1024
360
585
748
893
1019
1132
401
600
773
916
1045
1160
457
663
856
1019
1156
1277
496
718
924
1102
1259
1398
456
638
810
953
1077
1191
505
726
932
1098
1244
1375
533
857
1105
1319
1509
1675
439
699
906
1071
1224
1362
466
764
978
1157
1313
1466
Data based on wet coil with entering air at 80 degF DB / 67 degF WB without air filter. The maximum allowable pressure drop is 0.4 IWG. The maximum CFM is the data at 0.4 IWG pressure.
0.35 991 1122 1238 1256 1394 1530 1284 1494 1824 1487 1590
0.4* 1063 1217 1348 1357 1502 1651 1390 1604 1956 1589 1695
Maximun airflow setting
NOTE
Water blow-off could occur in certain installation positions if the airflow setting exceeds the maximum values listed.
Model ACCM3036ANOH ACCM3036BNOH ACCM3036CNOH
ACCM3642BNOH ACCM3642CNOH ACCM3642DNOH ACCM4248BNOH ACCM4248CNOH
ACCM4248DNOH ACCM4860CNOH ACCM4860DNOH
Upflow 1200 1250 1250 1575 1575 1575 1800 1800 1800 1850 2000
Maximun airflow seeting (CFM) Horizontal Left 1050 1200 1200 1400 1400 1450 1800 1800 1800 1750 1850
Downflow 1050 1050 1050 1400 1400 1450 1700 1700 1700 1750 1850
Horizontal Right 1200 1250 1250 1575 1575 1575 1500 1700 1700 1850 2000
08
P65Warnings.ca.gov
