COLEMAN®-MACH® AIR CONDITIONERS - RV Comfort

1 coleman - mach AIR CONDITIONERS . INSTALLATION INSTRUCTIONS. FOR. 8330A6321 CHILLGRILLE . WITH MOUNTING KIT. 8330-752 CONTROL BOX KIT (12 VDC COOL ONLY). 9330A755 CONTROL BOX KIT (12 VDC HEAT/COOL). 8530-750 CONTROL BOX KIT (24 VAC COOL ONLY). 9530A751 CONTROL BOX KIT (12 VDC HEAT PUMP). 9530A755 CONTROL BOX KIT (12 VDC HEAT PUMP). WITH BACKUP ELECTRIC HEAT. 8330B751 ZONE CONTROL KIT (12 VDC COOL ONLY). 8330C755 ZONE CONTROL KIT (12 VDC HEAT/COOL). 8530C751 ZONE CONTROL KIT (12 VDC HEAT PUMP). 9330-752 IR CONTROL KIT (12 VDC COOL ONLY). 9330-757 IR CONTROL KIT (12 VDC HEAT/COOL). 9530-757 IR CONTROL KIT (12 VDC HEAT PUMP). DESIGNED AND MANUFACTURED BY THE MAKERS OF. coleman - mach AIR CONDITIONERS . TABLE OF CONTENTS. Warnings.

2 2. Package Contents .. 2. General Information .. 3. Ceiling Plenum Installation Requirement .. 3. Control Box Kits .. 5. Control Box Kits (Zone) .. 5. Control Box Kits (Infrared Remote) .. 6. Wall Thermostats .. 6. Supply Ducting And Registers .. 6. Routing Thermostat Wiring .. 7. Routing Thermostat Wiring (Zone) .. 7. Routing IR Wiring .. 8. Routing 115 VAC Wiring .. 8. Ceiling Plenum Mounting .. 9. Installing The Control Box .. 10. Installing The Control Box (Zone) .. 11. Installing The Control Box (IR) .. 13. Installing The Heater Assembly .. 15. Install Air Grille Assembly .. 16. Mounting And Configuring The Handheld Transmitter .. 16. WARNINGS. IMPORTANT NOTICE WARNING - SHOCK HAZARD. These instructions are for the use of qualified individuals To prevent the possibility of severe personal injury or specially trained and experienced in installation of this type equipment damage due to electrical shock, always be sure the equipment and related system components.

3 Electrical power to the appliance is disconnected during installation. Installation and service personnel are required by some states to be licensed. PERSONS NOT QUALIFIED SHALL NOT CAREFULLY FOLLOW ALL INSTRUCTIONS AND. SERVICE THIS EQUIPMENT. WARNINGS IN THIS BOOKLET TO AVOID DAMAGE TO. THE EQUIPMENT, PERSONAL INJURY OR FIRE. WARNING. NOTE. Improper installation may damage equipment, can create a hazard and will void the warranty. The words Shall or Must indicate a requirement which is essential to The use of components not tested in combination with these satisfactory and safe product performance. units will void the warranty, may make the equipment in violation of state codes, may create a hazard and may ruin the The words Should or May indicate a equipment.

4 Recommendation which is not essential and not required but which may be useful or helpful. PACKAGE CONTENTS. 1) Small Parts Package Consisting Of: 1) Duct Divider Board 4) Bolts 1) Air Grille Assembly 8) Screws - 3/8" Length 1) Installation Instructions 1) Strain Relief 2) Metal Wing Nuts 1) Mount Frame 1) Hand Start Caution Sticker 1) Insulated Divider Support 3) Screws - 3/4" Length 2. GENERAL INFORMATION. The flush mount ceiling plenum is designed for application in These low voltage controllers are capable of operating both systems that utilize field fabricated (OEM supplied) cold air the roof top air conditioner and any furnace with a 12 VDC. ducting. The ducting must be routed through the ceiling control circuit of 1 amp or less (continuous current).

5 Cavity (between the interior ceiling and roof). Ducting specifications are given in the section labeled Supply All infrared control boxes are equipped with a amp fuse Ducting and Registers . that will automatically reset to protect the printed circuit board. This system utilizes a single, non-ducted centrally located All air conditioning equipment is subject to freeze up when return air opening. The return air opening is contained within evaporator air flow is sufficiently reduced. Ducting of any the ceiling plenum. The ceiling plenum must be located length creates potential for reduced evaporator air flow and directly below the roof opening used for mounting the roof top system freeze-up. To protect both the installer and RV.

6 Unit. Products from conditions that promote reduced air flow and system freeze-up, RV Products has equipped the ceiling All manual controls have been removed from the ceiling plenum compressor control circuit with a low temperature plenum. They have been replaced with control relays. The probe. The low temperature probe monitors the temperature of relays are mounted in the electrical box of the ceiling plenum. the air conditioner evaporator coil. When the temperature of The relays contain 12 VDC coils (which may be energized by a the evaporator coil drops below 28 degrees F, the switch will wall mounted thermostat), with contacts that control the 115 open, stopping compressor operation. Compressor operation VAC used to power the roof top unit.

7 Will resume once the evaporator warms to 55 degrees F. A low voltage controller controls all air conditioning IMPORTANT. functions. The low voltage controller controls a 12 VDC. electrical circuit, which is used to energize the relays in the The low temperature sensor is part of the ceiling plenum ceiling plenum. The low voltage controller that RV Products electrical circuit. The probe must be inserted into the provides for the system may be a combination (Heat/Cool). evaporator coil of the roof top unit by the installer when bolting the ceiling plenum to the roof top unit. CEILING PLENUM INSTALLATION REQUIREMENT. 1. The ceiling plenum must be installed under the roof the plugs are properly aligned and have snapped opening. together securely.

8 The ceiling plenum bolts below the roof top unit. 6. The wirebox for the heat/cool units will have a two Compression of the framed ceiling cavity between the pin receptacle which mates with the umbilical plug roof top unit and the ceiling plenum is what holds from the heater assembly. both components in place. 7. LOW VOLTAGE CONTROL WIRING (WALL. 2. Ceiling cavity depth (the measurement from the THERMOSTAT). ceiling to the roof - maximum 6"). A. A low voltage terminal strip on the front of 3. Provided with the ceiling plenum is a divider board the box connects to the low voltage control which is used to separate the conditioned air from the wires. The wires attach by 1/4" quick return air supply. connects. 4. The 115 VAC service for the roof top unit must be B.

9 The low voltage control wiring must be run routed into the ceiling plenum. To prevent wire from the wall thermostat mounting location pinching and to promote ease of installation, to the wirebox low voltage terminals. To allowances must be made for routing the 115 VAC prevent wire pinching and to promote ease supply wiring into the front of the roof opening. of installation, allowances must be made for routing the low voltage wiring into the front 5. The wirebox has a 9 pin receptacle extending from the of the opening. front. This mates with the roof unit 115 volt electrical conduit. When making this connection, verify that 3. 8. LOW VOLTAGE CONTROL WIRING (INFRARED B. The low voltage power wiring must be run REMOTE) from the power source to the wire box low voltage terminals.

10 To prevent wire pinching Note: It is recommended to install a 2 amp fuse and to promote ease of installation, between the 12 VDC power supply and the allowances must be made for routing the low control box R+ (+12 VDC) to protect the voltage wiring into the front of the opening. control wiring. C. If a gas heating appliance is to be operated, A. A low voltage terminal strip on the front of the the low voltage control wiring must be run box connects to the low voltage control wires. from the gas heat appliance to the wirebox The wires attach by 1/4" quick connects. low voltage terminals. To prevent wire pinching and to promote ease of installation, allowances must be made for routing the low voltage wiring into the front of the opening.