ITR POLAR HD, Installation And Operating Manual

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International Thermal Research 7-1
Plumbing the System
7.1 Before You Begin
For efficient and safe operation of the POLAR™ HD Heating Module,
follow all recommendations for properly installing the plumbing
system. Any deviations from these must be approved in advance by
ITR.
The POLAR™ HD Heating Module when attached to the Distribution
Module (optional) must use the following:
Use only an appropriate glycol based coolant with additives in the
coolant side of the Distribution Module (including engine loop).
For an efficient POLAR™ HD Heating Module operation, you must:
• Minimize heat loss from the Heating Module and hoses.
• Follow the flow directions for the fluids in the Heating Module.
Figure 9-3: Plumbing for Five Zones Using the Distribution
Module in Section 9, Installing the Distribution Module shows a
typical plumbing layout for circulating coolant from the POLAR™
HD Heating Module, then to the Distribution Module, and finally
to the cabin fans.
7.2 Plumbing Installation
The plumbing installation should consider the following:
• The POLAR™ HD Heating Module has a filler neck located on the
top of the unit and is equipped with a seven (7) pound radiator
cap.
Section
7
!
DANGER
When heat is called
for, the distribution
pump in the
Distribution Module
(optional) sends
heated fluid out to the
cabin fans.