Worcester 35CDi II User Manual

30
Within four
minutes of
last hot water
demand
AND
primary
temperature
above 80°C
If heat
demand has
occurred in
last 30
minutes
If heat
demand has
NOT
occurred in
last 30
minutes
Run pump
until primary
drops to
80°C
Run fan
until primary
drops to
80°C
If primary
temperature
still increases
above 90°C
Run pump for
two seconds
OVERRUN FUNCTION
AND
(Pulse pump
for 2 seconds
every 10
seconds
35CDi II)
Above
9°C
Commence normal
central heating mode
until temperature
reaches 30°C
5°C
to
9°C
Below
5°C
No demand
and primary
temperature
below 8°C
Internal
“Autofrostat”
demand
Wait in normal
off state for
30 minutes
Run pump for
four minutes
Monitor
central
heating
sensor
Return to
normal off
state
AUTOFROSTAT FUNCTION

Worcester 35CDi II Specifications

General

Model	35CDi II
Output	35kW
Mounting	Wall-mounted
Max. DHW Output	35kW
Efficiency Rating	A
ErP Heating	A
ErP Water	A
Warranty	5 years
Fuel Type	Natural Gas