gas pressure, loosen the col la r and unscrew and discard the valv e st em . DO NOT
INCINERATE.
CHECK THE REFRIGERANT TYPE before adding refrigerant to the machine. The
introduction of the wrong refrigerant can cause damage or malfunction to this
machine.
Operation of t hi s eq uipment with re fri ge ra nts other than those cited her ei n s ho uld
comply with ASHRAE - 15 ( l atest edition). Contac t Carrier for further info rmation
on use of this machine with other refrigerants.
DO NOTATTEMPT TO REMOVE fittings, covers, etc., while machine is under pres-
sure or while machine is running. Be sure pressure is at 0 psig (0 kPa) before
breaking any refrig er ant connection.
CAREFULLY INSPECT all relief devices, rupture discs, and other relief devices AT
LEAST ONCE A YEAR. If mach ine operates in a corrosive atmosphere, inspec t the
devices at more frequen t intervals.
DO NOT ATTEMPT TO REPAIR OR RECONDITION any relief device when corro-
sion or build-up of foreign material (rust, dirt, scale, etc.) is found within the valve
body or mechanism. Replace the device.
DO NOT install relief d evi ces in series or backw ard s.
USE CARE when working near or in line with a compressed spring. Sudden
release of the spring can cause it and objects in its path to act as projectiles.
WARNING !WARNING