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Installation
1. Using template provided, determine mounting loca-
tion.
2. Drill holes and attach mounting hardware (not includ-
ed).
IMPORTANT: THE HARDWARE AND THE SUPPORT-
ING STRUCTURE MUST BE CAPABLE OF SUPPORT-
ING A MINIMUM 150 LB. LOAD.
NOTE: All installation should be done to meet local
building code.
3. Mount cabinet on wall and securely tighten hardware.
4. Replace motor/blower assembly in cabinet. Secure
two wing nuts on blower base. Reconnect motor
electric cord plug assembly & heater plug.
5. Replace intake grille with louvers facing down and
refasten knurled nuts.
FIELD POWER WIRING
WARNING: ALL AIR CURTAINS SHOULD BE
INSTALLED BY QUALIFIED PERSONNEL.
1. Before wiring be sure that available power supply,
voltage, phase and frequency corresponds to that
specified on heater rating plate. In addition, make
certain that service capacity is sufficient to handle load
imposed by the equipment.
2. Install all wiring, protection and grounding in accor-
dance with the National Electrical Code (NEC) and
all local requirements.
WARNING: THIS FAN HAS AN INTERNAL SELF
RESETTING THERMAL OVERLOAD PROTECTOR.
ALWAYS DISCONNECT FROM POWER SUPPLY
BEFORE SERVICING.
3. Run proper size copper power supply conductors from
the field power supply disconnects, (supplied by
others) with insulation rated minimum 75°C (167.0°F).
One set of conductors from 208VAC, 50/60Hz supply
source shall be routed through the 3/4 inch conduit
knockout, using a suitable knockout connected to the
contactor contact terminals marked L1, L2, L3.
4. The heater control box must have an unbroken
electrical ground to minimize personal injury if an
electrical fault should occur.
FIELD CONTROL
WIRING
Electric heater is equipped with a step-down transformer
for 24V control circuit. Thermostat model number RSV-
130-R-54 must be used to energize heater with the fan
motor. Connect thermostat wiring from thermostat to
control leads in heated air curtain control box by means
of conduit or equivalent. A 1/2 inch knockout is provided.
Class 1 wiring is required.
5. Replace heater control box cover.
6. Unit is ready for operation.
7. Restore power.
NOTE: Air curtain has high/low selector switch. See
Operation section for proper setting instructions.
8. Upon completion of all installation, inspect unit for
excessive vibration during operation. If excessive
vibration is noticeable, disconnect power supply.
Inspect mounting installation and refer to
Troubleshooting Chart for probable cause.
3
Figure 5 - Wiring Diagram
BU
COLOR CODE
RE - RED
WH - WHITE
BK/RD - BLACK W/ RED TRACER
YE - YELLOW
OR - ORANGE
BU - BLUE
LEGEND
HR - HEAT RELAY
TB - TERMINAL BLOCK
TR TRANSFORMER
PL - PILOT LIGHT
FL - FUSE LINK
HE - HEAT ELEMENT
HEATER SECTION
FIELD WIRING TO THERMOSTAT
THERMOSTAT
TERMINAL MARKING
TO POWER
SUPPLY
PLUG
TB
L1
L2
L3
GR