Installation
26 RT-SVX23F-EN
3. Lift the tube and bracket from the downflow duct
opening. Rotate the tube and bracket assembly 180°
degrees ensuring that the holes on the copper sensing
tube face away from the unit and face the return air
ductwork. Refer to Horizontal View.
Note: Check to insure that the flexible tubing lies flat on
the base pan surface.
4. Slide the top bracket down the copper sensing tube,
insert the tab on the left side into the slot on the indoor
coil blockoff and secure the right side of the bracket
with one of the 3 screws removed in step 2. Refer to
Horizontal View.
5. Using the remaining 2 screws removed in step 2,
secure the bottom bracket. Refer to Horizontal View
Main Electrical Power Requirements
• Verify that the power supply complies with the unit
nameplate specifications.
• Inspect all control panel components; tighten any
loose connections.
• Connect properly sized and protected power supply
wiring to a field-supplied/installed disconnect switch
and to the main power terminal block (HTB1) in the unit
control panel.
• Install proper grounding wires to an earth ground.
Note: All field-installed wiring must comply with NEC
and applicable local codes.
Electric Heat Requirements
• Verify that the power supply complies with the electric
heater specifications on the unit and heater nameplate.
• Inspect the heater junction box and control panel;
tighten any loose connections.
• Check electric heat circuits for continuity.
Low Voltage Wiring
(AC & DC) Requirements
• Install the zone thermostat, with or without switching
subbase.
• Connect properly sized control wiring to the proper
termination points between the zone thermostat and
the unit control panel.
Figure 30. Downflow view
Figure 31. Horizontal view
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
WARNING
Proper Field Wiring and Grounding
Required!
All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards.To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes. Failure to
follow code could result in death or serious injury.
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