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Installation
General Installation Checks
The checklist below is a summary of the steps required to
successfully install a unit. This checklist is intended to
acquaint the installing personnel with procedures
required in the installation process. It does not replace the
detailed instructions called out 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 units have been tied to the skid by (4) angle
brackets. Remove these brackets from the unit to
slide unit from skid.
2. Verify the correct model, options and voltage from the
unit nameplate.
3. Verify the installation location of the unit will provide
the required clearance for proper operation.
4. Remove refrigeration access panel and inspect the
unit. Be certain the refrigerant tubing has clearance
from adjacent parts.
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Verify that no power is
present with a voltmeter.
Main Electrical
5. Verify the power supply complies with the unit
nameplate specifications.
6. Inspect all control panel components; tighten any
loose connections.
7. Connect properly sized and protected power supply
wiring to a field-supplied/installed disconnect switch
and to the main power terminal block (1TB1) in the unit
control box.
8. Install proper grounding wires to an earth ground.
Note: All field-installed wiring must comply with NEC
and applicable local codes.
Low Voltage Wiring Requirements
9. Connect properly sized control wiring to the proper
termination points between the field supplied
thermostat and the terminal strip located in the
equipment control box.
12
WARNING
Improper Unit Lift!
Failure to properly lift unit in a LEVEL position could
result in unit dropping and possibly crushing operator/
technician which could result in death or serious injury,
and equipment or property-only damage.
Test lift unit approximately 24 inches (61 cm) to verify
proper center of gravity lift point. To avoid dropping of
unit, reposition lifting point if unit is not level.
Unit Placement
Units may be placed into a field supplied mechanical rack
or placed on a finished floor. Loosen compressor bolts to
release tension of the rubber grommets to help reduce
vibration during operation. Sound proofing material (field
supplied) is recommended to help attenuate noise
generated by compressor vibration.
It is important to leave appropriate clearances around the
unit to achieve maintenance and serviceability to the
equipment. Refer to Dimensions and Clearances chapter
for service clearance dimensions.
Water Connection
Connect the source-side and load-side water-in/water-out
from the water-to-water heat pump to the source system
and the load system.
Note: The source for a water-to-water heat pump is
typically a boiler/cooling tower or geothermal loop.
The load for a water-to-water heat pump is typically
fresh-air unit(s), fan coil(s), hydronic coil(s), radiant
heat, wall fin, or potable water.
The source-side connection and the load-side connections
are at the rear of the unit.
For vibration isolation, it is recommended that flexible
steel braided hoses be installed instead of hard piping the
equipment to the main loop system or mechanical device.
Additional accessories, such as a strainer are
recommended for use to eliminate contaminants from
entering the co-axial water-to-refrigerant heat
exchangers.
Note: Provide insulation on water and refrigerant piping
on geothermal applications.
WSHP-SVX02E-EN
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