Modine Manufacturing HD Installation And Service Manual - page 9
9
Wiring
All field installed wiring must be done in accordance with the
National Electrical Code ANSI/NFPA 70 – latest edition or
Canadian Electrical Code CSA C22.1 Part 1 or local codes.
Unit must be electrically grounded according to these codes. If
any of the original wire supplied with the heater must be
replaced, replace it with wiring material having a temperature
rating of at least 105°C.
The power to these unit heaters should be protected with a
circuit breaker.
Location of thermostat should be determined by heating
requirements and be mounted on an inside wall about 5' above
floor level where it will not be affected by heat from the unit or
other sources, or drafts from frequently opened doors. See
instructions packed with thermostat.
Prior to Operation
Although this unit has been assembled and fire-tested at the
factory, the following pre-operational procedures should be
performed to assure proper on-site operation.
1. Turn off power.
2. Check fan clearance. Fan should not contact casing when
spun by hand.
3. Check all electrical connections to be sure they are secure.
4. If you are not familiar with the unit’s controls (i.e.
combination gas control), refer to the control manufacturer’s
literature supplied with the unit.
5. Check that all horizontal deflector blades are open a
minimum of 30° as measured from vertical.
FOR YOUR SAFETY READ BEFORE OPERATING
WARNING: If you do not follow these instructions exactly, a fire
or explosion may result causing property damage, personal
injury or loss of life.
A. This appliance does not have a pilot. It is equipped with an
ignition device which automatically lights the burner. Do not
try to light the burner by hand.
B. BEFORE OPERATING smell all around the appliance area
for gas. Be sure to smell next to the floor because some
gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do not use any
phone in your building.
• Immediately call your gas supplier from a
neighbors phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call the
fire department.
C. Use only your hand to move the gas control switch. Never
use tools. If the switch will not move by hand, don’t try to
repair it, call a qualified service technician. Force or
attempted repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect the
appliance and to replace any part to the control system and
any gas control which has been under water.
OPERATING INSTRUCTIONS
1. STOP! Read the safety information above.
2. Set thermostat to lowest setting.
3. Turn off all electric power to the appliance.
4. This appliance is equipped with an ignition device which
automatically lights the pilot. Do not try to light the pilot by
hand.
5. Remove the access panel.
6. Move the gas control switch to the “OFF” position.
7. Wait five (5) minutes to clear out any gas. Then smell for
gas, including near the floor. If you smell gas, STOP! follow
“B” in the safety information above. If you don’t smell gas,
go to the next step.
8. Move the gas control switch to the “ON” position.
9. Replace control access panel.
10. Turn on all electric power to the appliance.
11. Set the thermostat to the desired setting.
12. If the appliance will not operate, follow the instructions “To
Turn Off Gas to Appliance” and call your service technician
or gas supplier.
TO TURN OFF GAS TO APPLIANCE
1. Set thermostat to lowest setting.
2
Turn manual shut-off valve located outside of the unit to the
closed position.
3. Turn off all electric power to the appliance if service is to be
performed.
4. Remove access panel.
5. Turn the gas valve switch to the “OFF” position.
6. Replace the access panel.
INSTALLATION
CAUTION
Disconnect power supply before making wiring connections to
prevent electrical shock and equipment damage. All units
must be wired strictly in accordance with wiring diagram
furnished with the unit.
!
OPERATION