GH10TA USER MANUAL
PAGE
16
Issue I
July 2017
The GH10TA Controller allows connection of an additional pump to control the Hot Utility Water (HUW)
in the boiler.
8.1.
Instalation and Connections
To use the Hot Utility Water (HUW) heating option, perform the following actions:
1.
connect the boiler according to the enclosed diagram (
⇒
section 6.1.1 page 8).
2.
install the HUW temperature sensor in the HUW storage
We recommend mounting HUW temperature sensor in GECO
measuring drain.
You can not mounted temperature sensors in measuring drain with
water or oil !!!
3.
connect the HUW temperature sensor to the Controller at the appropriate
terminals as shown in Fig. 2
4.
configure the HUW pump for operation (
⇒
section 8.2 page 15).
8.2.
Configuration of Additional Pump
This procedure allows you to connect an additional pump that can be used as a mixing pump or a Hot
Utility Water (HUW) pump operating with or without higher priority.
The HUW pump is started when the boiler outlet water temperature is higher than 40°C and higher
than the water in the HUW boiler (to prevent cooling of the HUW boiler), and the HUW boiler temperature
is lower than the temperature set in the
U4
setting (
⇒
section
7.5
page 14).
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 8) then the boiler
controller has no external alarm output, but allows to view the HUW boiler temperature
by pressing
.
Use the following procedure to program operation of an additional pump in the Controller:
HUW temperature sensor is additional equipment and it’s not includes
to the standard set controller GH10TA.
Additional equipment can be delivery according with additional order.