72
Figure 8.5
– Safety valve mounted on unit
Description of components bought in
LEGEND
A
Safety
valve
B
Inspection
valve
C
Hermetic
circuit
Stop the unit and wait for the end of the switch-off cycle.
1. Disconnect the unit electric power supply.
2. Remove the upper panel from the unit.
3. Position the n. 2 CH22 spanners in the relevant seat (see Figure 8.6 Smontaggio
valvola di sicurezza on page 72).
WARNING! DO NOT REMOVE THE COMPONENTS DISTINGUISHED BY THE WAX
SEAL.
Figure 8.6
– Removing the safety valve
Safety valve disassembly
LEGEND
A
Keep
fi xed
B
Rotate
clockwise
4. Loosen the inspection valve in the direction indicated in detail “2” of Figure 8.6
Removing the safety valve on page 72 until complete assembly as indicated in
Figure 8.7 Removing the movable safety valve on page 73 paying attention not
to loosen part “B” of the inspection valve (see Figure 8.5 Particular safety valve
mounted on unit on page 72);
ATTENTION! if a consistent ammonia leak is detected during the removal phase,
tighten the inspection valve immediately.
