PAC PAS Installation & Operation Manual - page 27
INSTALLATION AND OPERATION MANUAL
PAC HEAT RECOVERY WATER HEATER
Page 26
- Tubing connections must be made by means of high-temperature
soldering or brazing.
- Tubing must be routed such that no possibility of contacting moving parts
occurs.
- Provide protection for tubing if the likelihood of accidental damage
occurring exists.
- Always use a gear-type tubing bender when making bends tubes. A
condit bender will flatten the tubing and restrict the flow of refrigerant.
- When installing tubing through walls or along a structural member, be
sure the tubing is isolated from these members to avoid any transmissions or
vibrations that might occur.
Table 1 for the per circuit condensing unit capacity range of the various PAC
Heat Recovery Water Heater units. To assure proper condensing unit operation, stay
within the capacity range specified.
A refrigeration unit exceeding the single circuit connections to a specific PAC
Heat Recovery Water Heater may be connected to two or more Heat Recovery Water
Heater circuits on one or more Heat Recovery Water Heater having a combined
circuit capacity equal to the refrigeration unit.
When making multiple Heat Recovery Water Heater circuit connections to a
single refrigeration unit, the piping to the Heat Recovery Water Heater circuits should
be in parallel. Series (through one circuit into another) piping of the Heat Recovery
Water Heater should not be used.
A refrigerant line discharge muffler is not necessary for proper operation or
warranty coverage in a Heat Recovery Water Heater installation. However, if the Heat
Recovery Water Heater is to be installed in an area where any machine noise would
be objectionable, a discharge muffler should be considered as a method of
eliminating the normal compressor pulsation noise present in all refrigeration system.
For maximum refrigeration unit efficiency and Heat Recovery Water Heater,
head pressure controls must be used.