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9630A751 ZONE CONTROL KIT (12 VDC HEAT PUMP) Airxcel, Inc. RV Products Division P.O. Box 4020 Wichita, KS 67204 Coleman is a registered trademark of The Coleman Company, Inc. used under license. Mach is a registered trademark. 1976N350 (9-14) PP...
These low voltage controllers are capable of operating the temperature of the air conditioner evaporator coil. both the roof top air conditioner and any furnace with a When the temperature of the evaporator coil drops below 12 VDC control circuit of 1 amp or less (continuous 28 degrees F, the switch will open, stopping compressor current).
5. CEILING PLENUM INSTALLATION REQUIREMENT The ceiling plenum must be installed under the roof The wirebox for the heat/cool units will have a two pin opening. receptacle which mates with the umbilical plug from the heater assembly. The ceiling plenum bolts below the roof top unit. Compression of the framed ceiling cavity between the LOW VOLTAGE CONTROL WIRING (WALL roof top unit and the ceiling plenum is what holds both...
6. CONTROL BOX KITS 8330-752 – 12 VDC Controlled, Cool Only 8530-750 – 24 VAC Controlled, Cool Only This kit consists of a control box assembly. The evaporator This kit is similar to the 8330-752 with the exception of a freeze sensor is shipped in an envelope for installation by transformer that is attached to the box assembly.
Four (4) wires are required (5 wires for White wire for heat circuit heat/cool boxes). These wires are as follows: Airxcel, Inc. low voltage wiring specifications: Blue wire for -12 VDC circuit A. All low voltage wiring should be 18 gauge Yellow wire for compressor circuit minimum.
Follow all local and NEC (National Electrical Code) for proper sizing of wire AWG based on Overcurrent Protection Device selected and the length of the wiring run to the air conditioner. 12. SECURING THE UPPER UNIT TO THE ROOF The supplied mounting frame is used to secure the upper unit Proper tension has been achieved for each bolt when to the roof per the following steps (See Figure 1).
13. INSTALLING THE CONTROL BOX Remove the control box assembly cover which is Control Box 8530-750 held by two sheet metal screws. Feed the field lead wires and ground through the strain relief found with the control box. Attach black supply conductor to black “pigtail” lead, white to white and ground to green with wire nuts provided in control box kit.
14. INSTALLING THE CONTROL BOX (ZONE) Remove the control box assembly’s cover which is Wire nut the black field power conductor to the held by two sheet metal screws. stripped black 12-gauge wire in the control box. Set the “zone” jumper to the proper zone position for Wire nut the white field power conductor to the the particular position the air conditioner or heat stripped white 12-gauge wire in the control box.
Zone 2 is wired in by jumpering from Sig 1, Sig 2, B- and R+ Complying with the warnings listed below, connect the 115 on Zone 1 box to Zone 2 box. Zone 3 is wired in by VAC supply wiring to its power source. Be sure all power jumpering from Sig 1, Sig 2, B- and R+ on Zone 2 box to remains off until beginning checkout procedure.
16. INSTALLING THE CEILING ASSEMBLY Fasten the duct collar to the basepan of the air opening. Cut off excess fabric on inside of ceiling conditioner with three (3) screws (See Figure 8). assembly chute with a box knife taking care not to tear the fabric beyond the adhesive strip.
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