Ceiling Plenum Installation Requirement - Coleman 9330F4552 Installation Instructions Manual

5. CEILING PLENUM INSTALLATION REQUIREMENT

1. The ceiling plenum must be installed under the roof
opening.
The ceiling plenum bolts below the roof top unit.
Compression of the framed ceiling cavity between the
roof top unit and the ceiling plenum is what holds both
components in place.
2. Ceiling cavity depth (the measurement from the ceiling to
the roof – maximum 6").
3. The 115 VAC service for the roof top unit must be routed
into the ceiling plenum. To prevent wire pinching and to
promote ease of installation, allowances must be made for
routing the 115 VAC supply wiring into the front of the
roof opening.
4. The wirebox has a 9 pin receptacle extending from the
front. This mates with the roof unit 115 volt electrical
conduit. When making this connection, verify that the
plugs are properly aligned and have snapped together
securely.
Cool Only Plenum Terminal
Boxes Designation
Yes
Yes
Yes GH
Yes
Yes FREEZE
Yes FREEZE
No
Plenum Terminal
Designation
R+
Cool Shed
(2 Terminals)
Heat Shed
(2 Terminals)
Room (2 Terminals)
Freeze (2 Terminals)
Gen
B-
Sig 1
Sig 2
* Zone 1 has option of using thermostat as room sensor
Thermostat Wire
Connection
B BLUE
Y YELLOW
GREEN
GL GRAY
WHITE
W WHITE
Thermostat Wire
Connection
Red
White
Jumper Wire
White
Jumper Wire
Any
White
Any
Blue
Purple
Black
5. The wirebox for the heat/cool units will have a two pin
receptacle which mates with the umbilical plug from the
heater assembly.
6. LOW VOLTAGE CONTROL WIRING (WALL
THERMOSTAT)
A. A low voltage terminal strip on the front of the box
B. The low voltage control wiring must be run from the
Standard Control Box
Function of Low Voltage Terminal
Extending From Ceiling Plenum
Completes -12 VDC circuit for all relays
Energizes coil on Compressor Relay
Energizes coil on High Fan Relay
Energizes coil on Low Fan Relay
Evaporator Freeze Sensor Connections
Energizes coil on Heat Relay
Zone Control Box
Function of Low Voltage Terminal Extending From Ceiling
Provides +12 VDC to upper unit control box
Removing jumper wire will allow system to be connected to N.C.
Removing jumper wire will allow system to be connected to N.C.
The remote room temperature sensor attaches here*
Allows system to connect to an automatic start generator system
Provides -12 VDC to upper unit control box
Communication line between upper unit control box and thermostat
Communication line between upper unit control box and thermostat
4
connects to the low voltage control wires. The wires
attach by 1/4" quick connects.
wall thermostat mounting location to the wirebox 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.
Plenum
contacts of a load shed system
contacts of a load shed system
Freeze sensor attaches here
Heat Ready
Boxes
Yes
Yes
Yes
Yes
Yes
Yes