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WARNING
Electrical Shock:
• Disconnect power before servicing.
• Replace all parts and panels before
operating.
• Electrically ground the air handler.
• Connect ground wire to ground terminal
marked "GRD".
• Failure to do so can result in death or
electrical shock.
• Before installing or servicing the air
handler, turn off power to unit. There may
be more than one disconnect switch.
• If a disconnect switch is to be mounted on
the unit, select a location where a drill or
fastener will not contact electrical or
hydronic components.
• Electrical shock can cause personal injury
or death.
WARNING
Explosion Hazard:
• Keep flammable materials and vapors,
such as gasoline, away from this unit.
• Failure to follow these instructions can
result in death, explosion or fire.
Line-Voltage Connections:
•
U.S. Installations: Make all electrical
connections in accordance with National
Electrical Code (NEC) ANSI/NFPA 70 and all
local codes or ordinances having jurisdiction.
•
Canadian Installations: Make all electrical
connections in accordance with Canadian
Electrical Code CSA C22.1 and all authorities
having jurisdiction.
•
Check all factory wiring per unit wiring
diagram and inspect factory wiring
connections to be sure none were loosened in
transit.
22
•
Use copper conductors only.
•
All field wiring must be done in accordance
with National Electrical Code, applicable
requirements of UL and local codes, where
applicable.
•
Electrical wiring, disconnect means and
over-current protection are to be supplied by
the installer. Refer to the air handler rating
plate for maximum over-current protection,
minimum circuit ampacity, as well as
operating voltage.
•
The power supply must be sized and
protected according to the specifications
supplied on the product.
•
This air handler is factory-configured for 120
Volts, single phase, 60 Hz.
•
Prior to making any electrical connections,
ensure that supply voltage, frequency, and
phase are as specified on unit rating plate.
•
Check to ensure that the existing electrical
service is adequate to handle the additional
load imposed by the Hydronic Furnace.
Refer to unit wiring diagram for proper
electrical connections.
•
All electrical connections MUST comply with
NEC and any other local codes or
ordinances having jurisdiction. USE
COPPER WIRE ONLY. Provide separate
branch electric circuit with field supplied
disconnect switch.
•
Location of disconnect switch to be in clear
site, accessible and in close proximity to the
unit.
•
Correct polarity MUST be maintained for
120 V wiring. If polarity is incorrect unit will
NOT operate.
Hydronic Air Handler Installation and Operation Manual
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