USER INSTRUCTIONS GH11RA
STRONA
14
Wydanie I
STYCZEŃ 2010
7.
OPERATING THE DHW BOILER
The GH11RA Controller allows connection of an additional pump to control the Domestic Hot Water
(DHW) in the boiler.
7.1.
Installation and Connections
To use the Domestic Hot Water (DHW) heating option, perform the following actions:
1.
connect the boiler according to the enclosed diagram (
⇒
section 6.1.1 page 3).
2.
install the DHW temperature sensor in the DHW boiler
3.
connect the DHW temperature sensor to the Controller at the appropriate terminals as
shown in Fig. 2
4.
configure the DHW pump for operation (
⇒
section 8.2 page 8).
7.2.
Configuration of Additional Pump
This procedure allows you to connect an additional pump that can be used as a mixing pump or a
Domestic Hot Water (DHW) pump operating with or without higher priority.
The DHW pump is started when the boiler outlet water temperature is higher than 40°C and higher
than the water in the DHW boiler (to prevent cooling of the DHW boiler), and the DHW boiler temperature
is lower than the temperature set in the
U5
setting (
⇒
section
6.6
page 7).
Pump operation is indicated by a dot on the display next to the fan symbol.
If the boiler room is configured as shown in the diagram (
⇒
section 6.1.1 page 3) then the boiler
controller has no external alarm output, but allows to view the DHW boiler temperature
by pressing
.
Use the following procedure to program operation of an additional pump in the Controller.
STEP 1
STEP 2
STEP 3
STEP 4
→
→
or
→
Display shows
„─ ─ ─ ─”
Press and
hold for 2s
Set the desired F00 value
00
– no pump operation
01
– mixing pump
02
– DHW pump winter mode without
priority
03
– DHW pump winter mode with
priority
04
– DHW pump summer mode
Save the
new setting
