Installation
58
WSHP-SVX01W-EN
water leaving the drain runs clear, but not less than 2
hours.
6. Shut down pumps and supplementary heat system.
Reconnect the hoses placing the water-to-refrigerant
heat exchanger in the water circulating system.
Note:
Vents should be open when the pumps and
supplementary heat system are shut down.
Field Installed Power Wiring
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. 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.
Verify that the power supply available is compatible with
the unit’s nameplate. Use only copper conductors to
connect the power supply to the unit.
Main Unit Power Wiring
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. 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.
A field supplied disconnect switch must be installed at or
near the unit in accordance with the National Electric Code
(NEC latest edition).
Location of the applicable electric service entrance for
HIGH (line voltage) may be found in the Dimensions
section of this manual.
The high-voltage connection is made at the 1K1 contactor
or 1TB1 power block inside the unit control box. See
. Refer to the customer connection diagram
that is shipped with the unit for specific termination points.
Provide proper grounding for the unit in accordance with
the local and national codes.
Figure 54.
Power wiring example
45C
45C
45D
45D
FIELD CONNECTIONS
1-PHASE
CONTACTOR
3-PHASE
CONTACTOR
4A
4A
5A
6A
6A
26E
26E
26F
26F
2A
2A
3A
1A
1A
1K1
1K1
Control Power Transformer
The 24 V control power transformers are to be used only
with the accessories called out in this manual. A 50 VA
transformer is externally fused. Transformers rated
greater than 50 VA are equipped with circuit breakers. If a
circuit breaker trips, turn OFF all power to the unit before
attempting to reset it.
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.
The transformer is located in the control panel.
Thermostat Location
Figure 55.
Thermostat/sensor location
5 F
eet
YES
NO
NO
NO
NO
O
NO
Location of the thermostat or zone sensor is an important
element of effective room control.
Areas where the thermostat or zone sensor should not be
located include:
•
Behind doors or corners
•
Near hot or cold air ducts
Summary of Contents for Axiom EXH Series
Page 123: ......
