Page 44
4. Refit the new valve in reverse order
ensuring that the valve spacers (on
Mertik valve) are in place.
5. Roll up the excess length of HT lead and
secure it to the rolled up thermocouple
cable with a new tie wrap.
4.3.4. Motor Replacement (Remote Control / Optimum Control Models
/ Trim Switch Models)
The gas rate adjusting motor is replaceable
in situ.
1. Remove the batteries from the receiver
unit to prevent the risk of short circuit.
2. Remove the two motor connection tags
from the valve.
3. Pull out the HT lead from the side of the
valve cover (see
Figure 68
).
4. Remove the valve cover securing screw.
5. Unclip the valve cover from the valve on
the right hand side by inserting a very
small screwdriver in the slot on the right
hand front of the cover and pull out the
cover.
6. Turn the gas rate adjusting knob fully
anticlockwise and gently manipulate the
motor free from the valve (see note).
(See
Figure 69
&
Figure 70
)
7. Replace with new motor ensuring that
the motor is hooked into the right hand
lug.
8. Replace the cover and secure with the
screw.
9. Remake the motor connections ensuring
that the large tag is fitted to the large
spade (top connection) and vice versa.
10.
Replace the batteries ensuring the
correct polarity.
11.
Operate the handset to check the
operation of the motor.
Valve Cover
Securing
Screw
HT
Lead
Figure 68
Figure 69
Gas Rate Adjusting
Knob
Drive
Motor
Figure 70
Note
: Operating the gas rate adjusting knob manually will cause the motor clutch
to operate. This is normal and will not affect the valves’ operation.
Содержание Premos 16 Inset
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