Biddle Comfort Circle Series - Connecting Change-Over

MANUAL INSTALLATION
Version: 1.0 (22-09-2005) 15
2.5.3 Units with water side control CC M
1. Connect the unit and the valve 1 to the CH system
according to the opposite diagram
.
1. Connect the heating valve to connector 1 (~) according
to the wiring diagram.
2. Connect the cooling valve to connector 2 (*) according
to the wiring diagram.
3. Fill and bleed the system.
4. Check the connections for leaks.
2.6 Connecting change-over
2.6.1 Introduction
If a unit is integrated into a change-over system, the control-
ler must know whether the system is supplying hot or cold
water. There are three options to achieve this:
1. Low-limit-temperature sensor (option) (see section 2.6.2).
2. Signal to the unit’s input (see section2.6.3).
3. Signal to the unit’s output (see section2.6.4).
1
1
2
~
*
*I~
change-over