49
44
FAILED REFRIGERATING UNIT
There are many things to consider before determining that the unit is faulty.
1. Leveling of the refrigerator
2. Ventilation
3.
Cleaning and proper size of burner orifice
4. Cleaning and proper size of by-pass screw
5 . Cleaning of thermos tat valve
6 .
7.
8.
9.
10.
11.
12.
13.
14.
15.
Proper gas pressure
Correct flame
Correct position of baffle in boiler tube
No burnt-out heating element
Heating element in correct position
Correct size and vattage of heating element
Supply voltage corresponds to voltage stamped on heating element
No fluctuation in voltage supply
No loose electric connections
Thermostat intact
16. No unit leaks
17. Safety valve intact
45.
PACKING OF DEFECTIVE UNITS
Particular attention must be paid to the packing of a replaced defective unit to en-
sure during its return to the distributor that it will not be damaged in transit.
When the replacement unit is supplied cased, careful note should be taken of the
manner in which it is packed, to ensure
that
the form of packing adopted, i.e. the
use of wood bracing and cardboard pads, is used when the defective unit is packed
into the case.
Structural distortion, particularly with the smaller units not having an angle iron
f rame, can easily occur if the case containing the unit is roughly handled and if
internal braces are not in position.
Содержание RM24A
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