Viessmann VITOTRONIC 100 GC1B Service Manual download pdf (Page 48)

Installation

Setting of the Adjustable High Limit (if required)

The adjustable high limit is supplied

with a factory setting of 95°C / 203°F

Adjustment to 100°C / 212°F

1. Disconnect power to control and

burner.

2. Using a suitable screwdriver,

lever out and remove the selector

knob ”R” behind the hinged cover.

3. Using a pair of pointed pliers, break

off the cams identified by the

shaded areas in the Fig. from the

stop dial.

75 to 1100°C

167 to 212°F

4. Fit the selector knob ”R” so that

the marking is in the centre of the

selected range.

Note the setting of coding address

”06”!

5351 338 v1.6

IMPORTANT

If the system is operated in

conjunction with a domestic hot

water tank, ensure that the

maximum permissible domestic

hot water temperature is not

exceeded. If necessary, install a

suitable safety device for this

purpose.

WARNING

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Viessmann VITOTRONIC 100 GC1B Service Manual Page 48