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Installation
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 codes could result in death or serious injury.
General Installation Checks
The checklist below is a summary of the steps required to
successfully install a commercial 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 that are in the applicable sections of
this manual.
1. Remove packaging and inspect the unit. Check the unit
for shipping damage and material shortage; file a
freight claim and notify appropriate sales
representation.
Note: The GEH/V ½-5 ton and EXH/V 1½-6 ton units have
been tied to the skid by (2) shipping bolts. The
removal of these bolts will require a 3/8 (9.7 mm)
ratchet with a ½ (12.7 mm) socket.
The GEV 6–25 ton units have been anchored to the skid
with (4) angle brackets. Remove these brackets before
lifting unit into place.
The GEH 6–15 ton units are anchored to the cross brace
of the skid with (4) wood screws. Remove these screws
prior to lifting the unit into place.
2. Verify the correct model, options and voltage from the
unit nameplate.
3. Pull out all field attached parts (i.e. filter rack, duct
collar, filter and mounting screws) from the unit
packaging for field mounting.
4. Verify the installation location of the unit will provide
the required clearance for proper operation.
5. Remove refrigeration access panel and inspect the
unit. Be certain the refrigerant tubing has clearance
from adjacent parts.
6. Fabricate and install duct work
7. Install and connect a condensate drain line and trap to
the drain connection.
52
Main Electrical
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.
1. Verify the power supply complies with the unit
nameplate specifications.
2. Inspect all control panel components; tighten any
loose connections.
3. Connect properly sized and protected power supply
wiring to a field-supplied/installed disconnect switch
and to the main compressor contactor/power block
1K1 (compressor contactor on the ½-5 ton) for GEH/V
½-5 ton and EXH/V 1½-6 ton units or 1TB1 for GEH/V 6-
25 ton equipment in the unit control panel.
4. Install proper grounding wires to an earth ground. EXH
and EXV 460 V units require a neutral (a four wire
system).
Note: All field-installed wiring must comply with NEC
and applicable local codes.
Electric Heat Requirements
5. Verify that the power supply complies with the electric
heater specifications on the unit and heater nameplate.
6. Inspect the heater junction box and control panel;
tighten any loose connections.
7. Check electric heat circuits for continuity.
Low Voltage Wiring (AC) Requirements
8. Install the zone sensor or thermostat.
9. Connect properly sized control wiring to the proper
termination points between the zone thermostat or
sensor and the unit control panel.
Filter Installation
Each unit ships with 1 (25.4 mm) or 2 (50.8 mm) 2 in. MERV
8 or 2 in. MERV 13 filters. The quantity of filters is
determined by unit size. The GEH ½- 5 ton and EXH units
requires a field installation of the 1/2 filter rack. All sheet
metal bracket, filter and hardware are in a box located on
the side of the unit within the unit packaging. All ½-25 ton
verticals and GEH 6–15 ton horizontal units ship with the
filter rack and filters factory installed.
Note: Do not operate the unit without filters.
WSHP-SVX01L-EN
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