RT-SVX072A-EN
15
Installation Checklist
General Checklist (Applies to all units)
The checklist listed below is a summary of the steps
required to successfully install a Commercial rooftop
unit. This checklist is intended to acquaint the installing
personnel with what is required in the installation
process. It does not replace the detailed instructions
called out in the applicable sections of this manual.
IImmppoorrttaanntt:: This checklist does not replace the detailed
instructions called out in the applicable
sections of this manual.
☐ Check the unit for shipping damage and material
shortage; file a freight claim and notify Trane office.
☐ Verify that the installation location of the unit will
provide the required clearance for proper
operation.
☐ Assemble and install the roof curb per the current
edition of the curb installation guide.
☐ Fabricate and install ductwork; secure ductwork to
curb.
☐ Install pitch pocket for power supply through
building roof. (If applicable)
☐ Rigging the unit.
☐ Set the unit onto the curb; check for levelness.
☐ Ensure unit-to-curb seal is tight and without buckles
or cracks.
☐ Install and connect condensate drain lines to each
evaporator drain connection.
☐ Remove the shipping hold-down bolts and shipping
channels from the supply and relief/return fans
ordered with rubber or spring isolators.
☐ Check all optional supply and relief/return fan
spring isolators for proper adjustment.
☐ Verify all discharge line service valves (one per
circuit) are back seated.
Main Electrical Power Requirements
☐ Verify that the power supply to the unit complies
with the unit nameplate specification. Refer to Main
Unit Power Wiring in the Installation chapter.
☐ Properly ground the unit.
☐ Inspect all control panel components and tighten
any loose connections.
☐ Connect properly sized and protected power supply
wiring to a field supplied/installed disconnect and
the unit (copper wiring only to the unit).
☐ Verify that phasing to the unit is correct (ABC).
☐ Turn the 1S1 fused switch inside the control panel
off to prevent accidental unit operation. (20-75T
units only).
☐ Turn the 1S1 and 1S20 fused switches inside the
control panel off to prevent accidental unit
operation. (90-130T units only).
☐ Turn on power to the unit.
☐ Press the STOP button on the User Interface (2P1).
☐ Allow compressor crankcase heaters to operate for
8 hours prior to starting the refrigeration system.
IImmppoorrttaanntt:: Note: All field-installed wiring must comply
with NEC and applicable local codes.
Field Installed Control Wiring
☐ Complete the field wiring connections for the
variable air volume controls as applicable. Refer to
unit diagrams for guidelines.
IImmppoorrttaanntt:: Note: All field-installed wiring must comply
with NEC and applicable local codes.
Requirements for Electric Heat Units
SSEEHH__ UUnniittss ((446600––557755VV))
☐ 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.
SSEEHH__ UUnniittss wwiitthh 220000VV oorr 223300VV EElleeccttrriicc HHeeaatt::
((RReeqquuiirreess SSeeppaarraattee PPoowweerr SSuuppppllyy ttoo HHeeaatteerr))
☐ Connect properly sized and protected power supply
wiring for the electric heat from a dedicated, field-
supplied/installed disconnect to terminal block
3XD5, or to an optional unit-mounted disconnect
switch 3QB4.
Requirements for Gas Heat Units
☐ Gas supply line properly sized and connected to the
unit gas train.
☐ All gas piping joints properly sealed.
☐ Drip leg installed in the gas piping near the unit.
☐ Gas piping leak checked with a soap solution. If
piping connections to the unit are complete, do not
pressurize piping in excess of 0.50 psig or 14" W.C.
to prevent component failure.
☐ Main supply gas pressure adequate.
☐ Flue Tubes clear of any obstructions.
☐ Factory-supplied flue assembly installed on the
unit.
☐ Connect the 3/4" CPVC furnace drain stub-out to a
proper condensate drain.
Requirements for Hot Water Heat (SLH_)
☐ Route properly sized water piping through the base
of the unit into the heating section.
PPrree--IInnssttaallllaattiioonn
To Next Page
Loading...
Need help?
General
