Installation
40 RT-SVX36K-EN
General Unit Requirements
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.
• Check the unit for shipping damage and material
shortage; file a freight claim and notifyTrane 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 exhaust/return fans with
rubber or spring isolators.
• Check all optional supply and exhaust/return fan
spring isolators for proper adjustment.
• Verify all discharge and liquid line service valves (one
per circuit) are back seated.
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 and unit
• Properly ground the unit.
Note: All field-installed wiring must comply with NEC
and applicable local codes.
Field Installed Control Wiring
• Complete the field wiring connections for the constant
volume controls as applicable. Refer to “Field Installed
Control Wiring” for guidelines.
• Complete the field wiring connections for the variable
air volume controls as applicable. Refer to “Field
Installed Control Wiring” for guidelines.
Note: All field-installed wiring must comply with NEC
and applicable local codes.
Requirements for Electric Heat Units
All SEHL and SEHK Units (380 minimum
voltage).
• 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.
SEHL Units w/200V or 230V Electric Heat:
(Requires Separate Power Supply to Heater)
• Connect properly sized and protected power supply
wiring for the electric heat from a dedicated, field-
supplied/installed disconnect to terminal block 4TB2,
or to an optional unit mounted disconnect switch 4S15.
Requirements for Gas Heat (SFH_)
• 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 inches w.c. to
prevent component failure.
• Main supply gas pressure adequate.
• FlueTubes clear of any obstructions.
• Factory-supplied flue assembly installed on the unit.
• Connect the 3/4” CPVC furnace drain stubout 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.
• Install the factory-supplied, 3-way modulating valve.
• Complete the valve actuator wiring.
WARNING
Live Electrical Components!
During installation, testing, servicing and
troubleshooting of this product, it may be necessary to
work with live electrical components. Have a qualified
licensed electrician or other individual who has been
properly trained in handling live electrical components
perform these tasks. Failure to follow all electrical
safety precautions when exposed to live electrical
components could result in death or serious injury.
To Next Page
Loading...
Need help?
General
