Step 10 - Install Plenums (If Required) - Carrier Omnizone 50XCW06 Installation Start-Up And Operatig Instructions

Step 10 — Install Plenums (if Required)
The installation of 50XC plenums is applicable to all vertical dis-
charge 50XCW units.
IMPORTANT: Lockout and tagout all power supplies to equip-
ment and controls prior to servicing unit. Follow all safety codes,
including working at safe heights.
The following tools are required:
• / -in. nut driver
5
16
• adequate lifting device
• utility knife
• safety glasses
• work gloves
C Compressor Contactor
—
CH Crankcase Heater
—
COMP — Compressor
CLO Compressor Lockout
—
DISC Disconnect
—
FRZ Freeze Protection
—
GND Ground
—
HPS High-Pressure Switch
—
HR Heater Relay
—
IFC Indoor-Fan Contactor
—
IFM Indoor-Fan Motor
—
IFR Indoor-Fan Relay
—
LLT
— Low Limit Thermostat
Fig. 23 — Typical Steam Coil Control Wiring (ON/OFF)
LEGEND
LPS
OFC
OFM
OFR
TB
TRAN — Transformer
Install as follows:
1. Apply / -in. wide by
3
4
unit to the bottom of mounting angles located on all four sides
of the plenum. Ensure edge of gasket is even with inside edge
of plenum walls and that there are no gaps in between insula-
tion strips. See Fig. 24.
2. Using appropriate lifting device, lift plenum and place on top
of 50XCW unit. Center plenum across both the width and
depth directions.
3. Using a / -in. nut driver, secure plenum mounting angles to
5
16
50XCW unit using 3 no. 10
plenum. Install 3 screws along each plenum side and 5 screws
along plenum front and rear mounting angles.
4. Adjust four-way deflection vanes as needed to ensure ade-
quate airflow distribution
24
— Low-Pressure Switch
— Outdoor-Fan Contactor
— Outdoor-Fan Motor
— Outdoor-Fan Relay
— Terminal Block
Terminal Block Connection
Marked Terminal
Unmarked Terminal
Factory Wiring
Field Wiring
/ -in. thick gasket tape supplied with
1
4
5 / -in. long screws provided with
8
.