UNIQUE UGP 3
5
4. After connecting, all
gas connections must be checked for leaks
. For this, put
a soapy solution on all gas connections, turn on the gas cylinder manual valve and
watch for bubbles. Never use an open flame to check for leaks.
Note: The gas supply system must incorporate a pressure regulator to maintain a supply
pressure of not more than 12” water column and no less than 11” water column. (Max
setting)
General Operating Instructions
Importance of Leveling a Refrigerator
The refrigerator must be adjusted to a vertical position in both directions. In an
absorption refrigeration system, ammonia is liquefied in the finned condenser coil at the
top rear of the refrigerator. The liquid ammonia then flows into the Evaporator (inside
the freezer section) and is exposed to circulating flow of hydrogen gas, which causes the
ammonia to evaporate, creating a cold condition in the freezer.
When starting this refrigerator, the cooling cycle may require 6 to 8 hours of running time
to begin cooling before the cooling unit is fully operational, you can then begin slowly
loading the compartment.
The tubing in the evaporator section is specifically sloped to provide a continuous
movement of liquid ammonia, flowing downward by gravity through this section. If the
refrigerator is operated when not level, liquid ammonia will accumulate in sections of the
evaporator tubing. This will slow the circulation of hydrogen and ammonia gas, or in
severe cases, completely block it, resulting in a loss of cooling. Warranty will not cover
recharge/rebuild if caused by not running the fridge level.
This refrigerator operates on LP Gas (Propane), 110V (Electricity) and 12V DC.
Gas Operation
“Start Up” Procedure
After initial installation, servicing, or changing gas cylinders etc., the gas pipes may
contain some air which should be allowed to escape by briefly turning on the
refrigerator. This will ensure that the flame lights immediately.
1. Make sure that all valves between the gas container and the refrigerator are
open.
2. Turn selector switch (E) to gas.
3. Depress the safety device control (D) and hold it down while immediately
depressing the electronic igniter button (B).
4. Check the flame indicator (C) to see whether the flame is alight.
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