Calorex Pro-Pac 45 - MAINS INPUT AND EXTERNAL INTERLOCK TERMINALS

Interlock
All units have interlock circuit incorporated in control circuit, brought out
to two terminals. These terminals are shorted out for factory testing.
The interlock may be used to control e heat pump from a remote
location or a built in flow switch.
On site shorting loop is to be removed and two wires taken to pair of
volt free contacts in water pump starter/contactor/relay or flow switch
so at e heat pump cannot operate unless water pump is operating
(see figs 5 and 6).
RECOMMENDED ELECTRICAL INSTALLATION FOR CALOREX HEAT PUMP WITH SINGLE
PHASE WATER PUMP
Fig. 5
L
N
WATER PUMP MORE THAN
¾ HP SINGLE PHASE
SINGLE PHASE
SUPPLY TO SUIT
CAPACITY OF WATER
PUMP
L N
L N
L
N L
4 POLE N/O STARTER WITH
OVERLOAD AND 230V 50Hz COIL
RATED TO SUIT WATER PUMP
N
L1
L2 L3 N
5
CALOREX HEAT PUMP
THREE PHASE
INTERLOCK
1
2
3
4
6
SWITCHED FUSE ISOLATOR
WITHIN 2m OF HEAT PUMP AND
SIZED IN ACCORDANCE WITH
DATASHEET
7 9
8
11
10
Fig. 4
LOCATION OF MAINS INPUT AND EXTERNAL INTERLOCK TERMINALS
N L1 L2 L3
D209450 ISS 1
REMOVE SERVICE PANEL
(1/4 TURN FASTENERS)
MAINS SUPPLY IN
21
0 1
N L1 L2 L3
D209450 ISS 1
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15
16
17
SOFT
START
SMART
CLOCK
FLOW
SWITCH
18
*OUTSIDE FAULT CIRCUIT
(ONLY ON Y MACHINES
WITHOUT TITANIUM
CONDENSERS)
*INTER
LOCK
13
SD566252 ISSUE 51