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CONTENTS

1. SAFETY.................................................................................................................2

2. GENERAL...........................................................................................................3

3. APPLICATIONS..................................................................................................6

4. ELECTRICAL  WIRING......................................................................................8

5. AIRFLOW  PERFORMANCE............................................................................10

6. DUCTWORK.....................................................................................................12

7. REFRIGERANT  CONNECTIONS......................................................................12

8. AIR  FILTER  (NOT  FACTORY-INSTALLED)....................................................13

9. FILTER INSTALLATION DIMENSIONS............................................................14

10. WIRING DIAGRAM..........................................................................................15

Air Handler Features

Multi-speed blower motor.

Replace piston to TXV  easily.

Multi-position installation - upflow or horizontal right standard; field convertible to horizontal left 

or downflow.

Multiple electrical entry locations.

Field-installed electric heater kits 5, 7.5, 10, 15, 20 kW available as an accessory.

Dual front panel design for ease of maintenance.

Blower and coil easy slide out for ease of maintenance.

Fully-insulated cabinet design.

Horizontal and vertical condensate drain pans standard.

Condensate drain pan is polymer with UVC inhibitor.

Primary and secondary condensate drain fittings.

Factory-sealed cabinet certified to achieve 2% or less air leakage rate at 1.0 inch water 

column.

Integrated filter rack with tool-less door access.

AHRI and ETL listed.

Summary of Contents for OXBOX J4AH4P Series

Page 1: ...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 RECOGNIZ...

Page 2: ......

Page 3: ...orizontal left or downflow Multiple electrical entry locations Field installed electric heater kits 5 7 5 10 15 20 kW available as an accessory Dual front panel design for ease of maintenance Blower a...

Page 4: ...e possibly resulting in fire electrical shock property damage personal injury or death The unit must be permanently grounded Failure to do so can result in electrical shock causing personal injury or...

Page 5: ...t desired applications Top and side power and control wiring accessible screw terminals for control wiring all combine to make the installation easy and minimize installation cost See Fig 6 CAUTION Ma...

Page 6: ...ts inside the installation space opening Respectively condensation may form on the surface of the insulation Be sure to use insulation that is designed for use with HVAC Systems Condensation may form...

Page 7: ...LOW UNIT SHOWN UNIT MAY BE INSTALLED UPFLOW DOWNFLOW HORIZONTAL RIGHT OR LEFT AIR SUPPLY Fig 6 DIMENSIONS NOTE 25 CLEARANCE IS REQUIRED IN THE FRONT OF THE UNIT FOR FILTER AND COIL MAINTENANCE SUPPLY...

Page 8: ...breaker while setting that side of breaker into opening When breaker is in place release tab locking circuit breaker into location in opening Repeat above operation for remaining breaker s if more th...

Page 9: ...DOWNFLOW STRAPS REAR WATER CATCHER TOP AIR STOP DRAIN CONNECTION DRAIN CONNECTION FRONT WATER CATCHER STRAPS THIS SYSTEM IS CHARGED WITH NITROGEN BEFORE SHIPMENT 42K 48K 60K 36K 30K 24k 18K A 1 4 A RA...

Page 10: ...ng metal conduit when installed in accordance with electrical codes to the unit cabinet Grounding may also be accomplished by attaching ground wire s to ground lug s provided in the unit wiring compar...

Page 11: ...240 208 5 7 5 10 5 7 5 10 15 5 7 5 10 5 7 5 10 5 7 5 10 15 20 15 20 15 20 60 18 30 36 42 MIN Circuit Ampacity MAX Fuse or Breaker HACR Ampacity Heat Kit Model Air Handler Model kW Electric Heat 5 7 5...

Page 12: ...rrent A CFM 999 953 905 847 757 681 610 543 411 Watts 316 310 306 302 288 279 270 256 240 Current A 1 38 1 36 1 34 1 32 1 28 1 24 1 21 1 16 1 10 CFM 1176 1127 1086 1028 944 842 746 668 569 Watts 342 3...

Page 13: ...r should use only industry recognized procedures Heat pump systems require a specified airflow for electric heat operating Each ton of cooling requires between 350 and 450 cubic feet of air per minute...

Page 14: ...return ductwork grills special filters accessories etc are accounted for in total resistance See airflow performance tables in this manual Design the duct system in accordance with ACCA Manual D Desig...

Page 15: ...ecommended that a professional installation technician is contacted to ensure installation of these such filtration systems are installed correctly IMPORTANT Do not double filter the return air duct s...

Page 16: ...FILTER RAILS FILTER COVER MANUAL BOLT 9 FILTER INSTALLATION DIMENSIONS AIR FILTER REMOVAL DIMENSIONAL DATA 18 24 16 8 426 20 4 518 1 25 4 19 6 14 8 30 36 18 3 466 21 6 548 1 25 4 20 8 16 3 42 48 60 20...

Page 17: ...OR HP SYSTEMS RED GREEN 24RC G Fan Y1 Comp W1 B THERMOSTAT INDOOR UNIT OUTDOOR UNIT G R C Y C BLACK YELLOW BLACK RED GREEN W2 G Fan Y1 Comp W1 B THERMOSTAT INDOOR UNIT OUTDOOR UNIT G R C C B BLACK YEL...

Page 18: ...d blue wire and connect with FAN terminal while medium speed red wire connect with M1 terminal CAPACITANCE CN7 CN8 CN4 CN1 CN11 M1 CN3 LINE VOLTAGE FACTORY STANDARD FIELD INSTALLED OPTIONAL LOW FACTOR...

Page 19: ...D FL BLUE 4 1 3 2 CB2 30A W2 L1 L2 L1 L2 LS ELEMENTS 0 C 1 4 8 2 6 RELAY2 POWER RED RED BLACK FL FL BLUE BLUE 4 1 3 2 CB1 60A W1 WHITE L1 L2 L1 L2 BLUE RED LS LS ELEMENTS ELEMENTS BROWN BLACK 1 2 3 4...

Page 20: ...combination Use Table 3 for TXV kit part numbers A TXV may be required to achieve minimum efficiency ratings or for long refrigerant line set applications Reference AHRI for system combination rating...

Page 21: ...5 105 26 19 11 6 5 5 100 27 21 13 7 6 5 95 29 23 14 9 6 5 90 30 25 18 12 7 5 85 32 26 20 15 9 6 80 34 28 22 17 11 6 75 35 30 24 19 13 7 70 37 32 26 21 16 10 65 38 34 29 24 19 13 60 40 36 31 27 22 17 5...

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