Rapid Engineering UHAT 150, Инструкция по установке, эксплуатации и обслуживанию

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UHA S
TANDARD
U
NIT
H
EATER
I
NSTALLATION
O
PERATION AND
S
ERVICE
M
ANUAL
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SECTION 10: WIRING
All heater models require constant 120 V / 1Ø / 60
Hz power supply. Check heater serial plate for
electrical rating for proper circuit sizing. For
servicing, a disconnect switch of proper electrical
rating should be installed in the vicinity of the heater.
All heaters are equipped with thermostat
connections suitable to power a 24 V thermostat.
Heater must be wired and electrically grounded in
accordance with local codes. In the absence of local
codes in accordance with: United States: refer to
National Electrical Code
®
NFPA 70 - latest revision
Canada: refer to Canadian Electrical Code CSA
C22.1 Part I - latest revision.
10.1 Positioning Thermostats
A room thermostat should be mounted on a
vibration-free wall or column at a height of
approximately 5' (1.5 m) from the floor to measure
the ambient temperature. It should be clear of both
cold drafts and the direct path of warm air from the
heater.
Avoid mounting thermostat on outside walls or in
areas directly exposed to radiant heat or sunlight.
Install wall tag in a visible location near thermostat.
See Page 4, Section 2.1 for wall tag details.
10.1.1 Fan Control
The heater’s axial fan can be used during the off-
season for air circulation. A low voltage
programmable thermostat with fan switch (P/N
90425400) must be used. For thermostat
connection details See Page 21, Section 10.2.
DANGER
Electrical Shock Hazard
Disconnect electric before service.
More than one disconnect switch may be
required to disconnect electric from
equipment.
Equipment must be properly grounded.
Failure to follow these instructions can result
in death or electrical shock.