Tecumseh CD454532EGH-S, Руководство по установке

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Always protect low (or dual) pressure control from excessive high pressure. It is recommended to disconnect
the low-pressure (or the low side of the dual pressure) control prior to pressurization.
WARRANTY
Follow the leak check procedure very carefully. Warranty will be voided if compressor fails as a result of
refrigerant leakage related problems. Leakage of refrigerant to the atmosphere has been identified as a
major source of global warming and ozone depletion.
SYSTEM FLUSHING, PURGING, AND PRESSURE
TESTING FOR LEAKS
A pressure leak test is mandatory and is to be performed for the complete refrigeration system, including the
ODCU, prior to system charging.
To thoroughly leak check the system, the system should be pressurized to a maximum of 150 psig with dry
nitrogen to the high and low side of the system. With the pressure equalized at 150 psig, a leak check should
be performed on EVERY joint in the system to ensure that no leaks are present. The initial charge may be
released.
The leak check procedure should then be repeated using a much more accurate means to determine that the
system is 100% free of leaks. Use of electronic leak detection equipment is highly recommended due to its
potential accuracy when used correctly in accordance with the manufacturer’s instructions. If trace amounts
of refrigerant are used, use only the refrigerant indicated on the serial label of the ODCU.
If trace amounts of refrigerant are used during the leak check procedure, this must be properly recovered and
disposed of in an appropriate manner to protect the environment.
As an added precaution, the leak check charge should be left in the system for no less than 12 hours without
loss of pressure.
Every joint in the system including, but not limited to, factory welds, flare nuts and pressure controls must be
leak checked. A leak free system is required for the installation to function correctly.
NOTE: odcu is leak checked by helium leak detection (HLD).
Failure to properly flush, purge, or pressure test a system for leaks can result in serious injury or death from
explosion, fire, or contact with acid-saturated refrigerant or oil mists.
Follow these precautions when flushing, purging or pressure testing a system for leaks:
ITEM CODE
CUT IN
BAR
CUT OUT
BAR PSIG PSIG
HP/LP BODY CONTACT
580066 18.8+1 276.4 26.7 + 0.7 392.5
HP
BLACK CLOSED
580070 2.6 + 0.3 38.22 0.65 + 0.2 9.555
LP GREEN OPENED
REFRIGERANT
R22
R22