THIS MANUAL IS THE PROPERTY OF THE OWNER.
PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB.
Inspection on Arrival
1. Inspect unit upon arrival. In case of damage, report it
immediately to transportation company and your local
Modine sales representative.
2.
Check rating plate on unit to verify that power supply meets
available electric power at the point of installation.
3. Inspect unit upon arrival for conformance with description of
product ordered (including specifications where applicable).
Table of Contents
Inspection on Arrival ................................. 1
Special Precautions ................................. 2
SI (Metric) Conversion Factors......................... 3
Before you Begin ................................... 3
Unit Location....................................... 4
Combustible Material and Service Clearances ......... 4
Unit Mounting .................................. 5
Venting ....................................... 6
Gas Connections............................... 12
Electrical ..................................... 13
Operation..................................... 14
Unit Components .................................. 15
Dimensions....................................... 16
Service/Trouble Shooting ............................ 17
Unit Wiring Diagram ................................ 18
Serial/Model Number/Replacement Parts ............... 19
Commercial Warranty............................... 20
INSTALLATION AND SERVICE MANUAL
separated combustion gas-fired unit heaters
model HDS and HDC
6-584.3
5H80002A
September, 2010
All models approved for use in California by the CEC, in New
York city by the MEA division, and in Massachusetts. Unit heater
is certified for residential and commercial applications.
WARNING
1. Improper installation, adjustment, alteration,
service or maintenance can cause property
damage, injury or death, and could cause
exposure to substances which have been
determined by various state agencies
to cause cancer, birth defects or other
reproductive harm. Read the installation,
operating and maintenance instructions
thoroughly before installing or servicing this
equipment.
2. Do not locate ANY gas-fired units in areas
where chlorinated, halogenated, or acid
vapors are present in the atmosphere. These
substances can cause premature heat
exchanger failure due to corrosion, which
can cause property damage, serious injury,
or death.
FOR YOUR SAFETY
The use and storage of gasoline or other
flammable vapors and liquids in open containers
in the vicinity of this appliance is hazardous.
FOR YOUR SAFETY
WHAT TO DO IF YOU SMELL GAS:
1. Open windows.
2. Do not try to light any appliance.
3. Do not touch any electrical switch; do
not use any phone in your building.
4. Immediately call your gas supplier
from a neighbor’s phone. Follow the gas
supplier’s instructions. If you can not reach
your gas supplier, call your fire department.
IMPORTANT
The use of this manual is specifically intended
for a qualified installation and service agency.
All installation and service of these units must
be performed by a qualified installation and
service agency.
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