Wiring - Modine Manufacturing HDS Installation And Service Manual

INSTALLATION

Wiring

WARNING
1. Disconnect power supply before making wiring
connections to prevent electrical shock and equipment
damage.
2. All appliances must be wired strictly in accordance with
wiring diagram furnished with the appliance. Any wiring
different from the wiring diagram could result in a hazard to
persons and property.
3. Any original factory wiring that requires replacement must
be replaced with wiring material having a temperature
rating of at least 105°C.
4. Ensure that the supply voltage to the appliance, as
indicated on the serial plate, is not 5% greater than rated
voltage.
CAUTION
Ensure that the supply voltage to the appliance, as indicated
on the serial plate, is not 5% less than the rated voltage.
Table 10.1
Manifold Pressure & Gas Consumption
Model BTU/Cu. Ft.
Size Specific Gravity
Manifold Pressure In. W.C.
CFH
Gal/Hr. Propane
30
Sec/cu. ft.
Orifice Drill Size
CFH
Gal/Hr. Propane
45
Sec/cu. ft.
Orifice Drill Size
CFH
Gal/Hr. Propane
60
Sec/cu. ft.
Orifice Drill Size
CFH
Gal/Hr. Propane
75
Sec/cu. ft.
Orifice Drill Size
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.
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.
OPERATION
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.
10
Natural Propane
1050 2500 No. of
0.60 1.53 Orifices
3.5 10.0
28.6 12.0 2
.33
126 300
49 56
42.9 18.0 3
.50
84 200
49 56
57.1 24.0 4
.66
63 150
49 56
71.4 30.0 5
.83
50 180
49 56
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.
E. Should overheating occur, or the gas supply fail to shut off, shut
off the manual gas valve to the appliance before shutting off the
electrical supply.
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.
Vent System Sizing Verification
1. Seal any unused openings in the venting system.
2. Inspect the venting system for proper size and horizontal pitch,
as required in the National Fuel Gas Code ANSI Z223.1 or
CSA B149.1. Installation Code-latest edition and these
instructions. Determine that there is no blockage or restriction,
leakage, corrosion and other deficiencies, which could cause an
unsafe condition.