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ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES

Important:

 

This Document is customer property and is to remain with this unit.

The  JMM4A  series  wall  mount  air  handler  is  designed  for  installation  in  a  closet,  utility  room, 
alcove  and  can  be  wall  mounted.  These  versatile  units  are  applicable  to  air  conditioning 
applications. Field installed electric resistance heaters are available.

5, 7.5 and 10 kW SINGLE PHASE ELECTRIC
HEATERS
- Circuit breakers are standard on all single

phase 5,  7.5 and 10 kW heaters.

All aluminum coil.

Factory installed piston style refrigerant control-

Field installed TXV kits available.

Blower and coil  slide out easily for maintenance.

Factory-sealed cabinet certified to achieve 2% or

less air leakage rate at 1.0 inch water column.

Front or bottom return air.

Painted finish on galvanized steel.

Sturdy polycarbonate drain pans.

- Air handler has factory installed drain pan and

is shipped for upflow applications only.

208/230 VAC operation.

Stud or wall mount installation.

Fully insulated cabinet.

3/4'' NPT primary and secondary drains.

AHRI certified and ETL listed.

A

18-GF12D1-1A-EN

JMM4A0A18S21SAA

JMM4A0A24S21SAA

JMM4A0B30S21SAA

JMM4A0B36S31SAA

Summary of Contents for OXBOX JMM4A0A18S21SAA

Page 1: ...single phase 5 7 5 and 10 kW heaters All aluminum coil Factory installed piston style refrigerant control Field installed TXV kits available Blower and coil slide out easily for maintenance Factory sealed cabinet certified to achieve 2 or less air leakage rate at 1 0 inch water column Front or bottom return air Painted finish on galvanized steel Sturdy polycarbonate drain pans Air handler has fact...

Page 2: ... state electrical code on requirements for grounding Failure to follow this warning could result in property damage serious personal injury or death HAZARDOUS VAPORS Do not install an air handler with a non ducted return in the same closet alcove or utility room as a fossil fuel device Hazardous vapors can be distributed throughout the conditioned space and equipment damage can result Section 2 Sa...

Page 3: ...ins adhesives cleaning compounds and cement creates a corrosive condition which may cause rapid deterioration of the cabinet and internal components CAUTION SAFETY HAZARD Sharp Edge Hazard Be careful of sharp edges on equipment or any cuts made on sheet metal while installing or servicing Personal injury may result WARNING Make sure the blower motor support is tight 3 motor mount bolts then check ...

Page 4: ...mounting bracket and attach the unit to the installed bracket Reference Figure 3 1 4 Install the additional bottom plate for extra support for this type mounting see figure 3 1 Note The additional plate is shipped in the bottom of the shipping carton only for 30 36k unit 3 2 1 WALL MOUNT Fig 3 2 FRAME MOUNT The air handler comes with 8 clearance holes 4 on each side These holes are used to mount t...

Page 5: ...idential Winter and Summer Air Conditioning and Equipment Selection Latest editions are available from ACCA Air Conditioning Contractors of America 1513 16th Street N W Washington D C 20036 If duct system incorporates flexible air duct be sure pressure drop information straight length plus all turns shown in ACCA Manual D is accounted for in system Supply plenum is attached to the 3 4 duct flanges...

Page 6: ...HP or AC single stage heating cooling with electric heat The thermostat will energize the fan on a demand for heating or cooling Install the thermostat on an inside wall away from drafts lights or other heat sources in a location that has sufficient air circulation from other rooms being controlled by the thermostat The thermostat should be mounted 4 to 5 feet above the floor Low voltage control w...

Page 7: ...oints are tight 7 Be sure the return air filter is installed 8 Operate complete system in each mode to verify proper performance Verify operation of supplementary electric heater 7 3 13 Maintenance The system air filter s should be inspected cleaned or replaced at least monthly Make certain that the access panels are replaced and secured properly before placing the unit back in operation This prod...

Page 8: ...ctric heaters 8 N E C class2 24volts Factory default fan speed is medium FM red wire connected to FR 4 For HI speed connect FM black wire to FR 4 For LOW speed connect FM blue wire to FR 4 and FM red wire to FR 6 Always connect the unused FM wire to the dummy terminal CN3 connect the plug to electric heaters kit when applied FM T A T S O M R E H T O T PLUG PLATE SEE NOTE 4 SCHEMATIC DIAGRAM COMPON...

Page 9: ... 1290 1263 1196 1116 1051 980 907 Med 1298 1252 1198 1147 1094 1037 976 910 842 Low 1149 1105 1056 1008 960 909 856 791 726 36 EXTERNAL STATIC PRESSURE in w c 24 30 MODEL JMM4A BLOW ER SPEEDS 18 Shaded boxes represent airflow outside the required 300 450 cfm ton NOTES 1 Airflow based upon dry coil at 230V with no electric heat and factory approved filter 2 Airflow is equivalent for front or bottom...

Page 10: ...applications section for more detail Primary drain conncetion 3 4 female pipe thread NPT Auxiliary drain connection 3 4 female pipe thread NPT NOTE Hand tighten only Section 7 Dimensional Data DIMENSIONAL DATA 18 88 101 40 46 MODEL SIZE Dimensions inch mm UNIT HEIGHT H IN mm UNIT WIDTH W IN mm UNIT LENGTH D IN mm 88 101 40 46 24 UNIT WIDTH W1 IN mm UNIT WEIGHT SHIPPING WEIGHT LBS kg UNIT LENGTH D1...

Page 11: ...MENSIONS A B C JMM4A0A18S21SAA 24 9 10 150 10 1 8 61 119 1 20 717 JMM4A0A24S21SAA 24 9 10 150 10 1 8 61 119 1 20 717 JMM4A0B30S21SAA 24 9 10 150 10 1 8 61 132 795 JMM4A0B36S31SAA 24 9 10 150 10 1 8 61 132 795 Model number Dimension inch mm ...

Page 12: ...our local dealer distributor Since the manufacturer has a policy of continuous product and product data improvement it reserves the right to change the design and specification without notice 16123000A19244 V2 0 www oxboxhvac com 2019TwentyThreeC LLC 800 Beaty Street ...

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