Section 7, Plumbing the System
International Thermal Research
7-5
3 If the Distribution Module is not utilized, connect the cabin
fan heater supply lines to the supply coolant “Outlet” from the
POLAR™ HD Heating Module. Ensure there are no kinks or
sharp bends that might restrict the fluid flow. See Figure 7-2:
Three Approved Methods of Installing Heater Hose (Consult ITR
for Alternative Methods and Products) for methods of attaching
the heater hose.
Connect the cabin fan heater return lines to the return coolant
“Inlet” on the POLAR™ HD Heating Module. Ensure there are
no kinks or sharp bends that might restrict the fluid flow.
4 Fill the POLAR™ HD Heating Module with the appropriate
glycol/water anti-freeze solution and bleed all trapped air. Use
the filling manifold to properly add the appropriate glycol/ water
mixture and properly purge the system. Do not use the filler
neck alone on the HD Heating Module.
Do not operate the POLAR™ HD Heating Module until the proper
water/anti-freeze solution has been added to the POLAR™ HD
Heating Module and the heating system and all trapped air has
been bled. An inadequate mixture may cause system
circulation problems and potential POLAR™ HD Heating Module
damage and/or personal injury.
Use only an appropriate glycol based coolant with additives.
Refer to the anti-freeze manufacturer recommendations for
instructions for your application.
Figure
7-2: Three Approved Methods of Installing Heater Hose
(consult
ITR
for
alternative
methods
and
products)
Summary of Contents for POLAR HD
Page 1: ...POLAR HD Heating Module Installation and Operating Manual Diesel and AC Heating System...
Page 14: ...Section 1 Overview 1 8 POLAR HD Heating Module...
Page 20: ...Section 2 Mounting the POLAR HD Heating Module 2 6 POLAR HD Heating Module...
Page 30: ...Section 4 Installing the Fuel System 4 4 POLAR HD Heating Module...
Page 46: ...Section 7 Plumbing the System 7 6 The POLAR HD Heating Module...
Page 62: ...Section 8 Operating the Heating Module 8 16 The POLAR HD Heating Module...
Page 76: ...Section 9 Installing the Distribution Module 9 14 The POLAR HD Heating Module...