Potterton Derwent Compact Plus - Control Panel; Gas Assembly; Set-up

SECTION 5 POTTERTON COMMERCIAL PRODUCTS DIVISION
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
PAGE 14
DERWENT COMPACT PLUS - CONDENSING
Control Panel
The CE 100 module provides the following
functions:
- Operation at 1
st
Stage
- Detection of boiler overheat, ionisation
probe fault
- Ability to restrict max boiler temperature
using jumper at back of module
- Indication of the operation mode of the boiler
- Operation of 2
nd
Stage operation.
The CB 120 module provides the following
functions:
1. Reset Button
2. Overheat Thermostat
3. Overheat Indicator
4. Lockout Indicator
5. Mains Supply Indicator
6. On/Off Switch
7. Override button for Safety Checks
8. Override Thermostat (Set fully to the
right((maximum position)) allowing control by
the 1
st
Stage and 2
nd
Stage thermostats)
9. 6.3 Amp Fuse
10. Boiler Thermometer
Gas Assembly
(8 Section Model Shown)
The Gas Assembly is pre-set at the factory ready
for use at high and low conditions.
The 4 Section model has one main valve, the 6 &
8 section have one main gas valve and one slave
valve.
The main gas valve has a two-stage governor for
high and low load (left valve).
The slave gas valve has single stage operation
only and its governor is pre-set at the factory.
The governor has a yellow cover and the setting
up is shown below.
Set-up
For fine adjustment of the gas valve on
commissioning in order to obtain the correct
Pum
p
Switch
(
Not Used
)
Pump Indicator
Li
g
ht
Boiler Temperature
Control Thermostat
Green Indicator Light
Showing 1
st
Stage Run
(If light flashes indication of
overheat fault)
2
n
d
Sta
g
e Thermostat
2
n
d
Stage
Indicator Light
CE 100
CB 120
1
2
3
4
8
7
65
10
9