Adjustement - Chaffoteaux & Maury Britony SE 80 Nat Operating Instructions Manual

Installing the Boiler
7
S
R85 R85 F1 F1 F1A F1A
Fig. 13
D
Fig. 15
P3
Fig. 16
10
T
main supply cable
V
mini maxi
P3
Detail
(P3-P4-P5)
(continued)
Connector C
ADJUSTMENT
Choice of mode :
- Function without room thermostat bridge "S" remains in
place.
- Function with room thermostat remove bridge "S", room
thermostat connected as shown on connector "C" (fig. 14).
The external control switches both burner and
pump. The external control switches the pump off after a
delay of 3 min 30'
Choice of boiler operation :
In order to make these adjustment you will need to access
the front of the electrical box.
Isolate mains electrical supply to boiler.
Remove boiler outer casing.
Remove rubber cover "D" (fig. 15) on face of electrical box.
Adjustment on the PCB Central Heating Mode (fig. 16) :
B
- P3 : potentiometer TAC (Temporisation Anti Cycle) may
now be adjusted between 30 seconds and 3 minutes
(see detail) (factory set at 3 minutes).
- JP3 : the spade connector (fig. 14) allows the gas rate to
be reduced to 1/3 performance by positionning
spade across pins as shown (fig. 14).
Full performance across pins as shown (fig. 14).
After completling adjustments replace rubber cover and
refit outer casing.
Room thermostat
T.A.
P3
1/3
P3
1/3
R85 R85 F1 F1
P3
3/3
F1A F1A
Fig. 14