
3. Guideline for each installation process
66
Heat Recovery Connection from front side
Connection from bottom at the
left/right side
Single
Installation
Combination
installation
Caution for connecting the pipe
• When connecting the pipe to the unit, the unit may get damaged by a brazing fire
and a flame.
Use a flame proofing cloth to protect the unit from a brazing fire or flame.
Ambient air temperature sensor for detecting outside temperature is located on
the left side of the welding part. Make sure not to damage the temperature sensor
when welding it.
• The O-ring and Teflon packing inside service valve may get damaged by a
welding fire. Wrap the bottom side of the service valve with a wet cloth and weld it
as shown above. Make sure not to interrupt the brazing with the drops of the wet
cloth.
• The connecting pipes of liquid side and gas side should not contact each other.
Vibration may cause a damage to the pipes.
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