Calorex 29 Series Owners & Installation Manual page 15

RECOMMENDED ELECTRICAL INSTALLATION FOR CALOREX HEAT PUMP (1Ø)
WITH SINGLE PHASE WATER PUMP OF MAXIMUM ¾ H. P
(NOTE: Method shown in Fig 9. is a preferred system due to incorporated starter and interlock)
RECOMMENDED ELECTRICAL INSTALLATION FOR CALOREX HEAT PUMP(1Ø)
WITH SINGLE PHASE WATER PUMP OF LARGER THAN ¾ H.P.
SINGLE PHASE
SUPPLY TO SUIT
CAPACITY OF
WATER PUMP
L N
L N
N
FIGURE 9
SINGLE PHASE
13 AMP SUPPLY 230v
FUSED TO SUIT
WATER PUMP
L
WATER PUMP
N MAXIMIUM 3/4 HP
SINGLE PHASE
FIGURE 10
VOLT FREE
AUXILLARY
CONTACT N/O
L
4 POLE N/O STARTER WITH
OVERLOAD AND 230v 50Hz COIL
RATED TO SUIT WATER PUMP
L
N
L
WATER PUMP
N
MORE THAN 3/4 HP
SINGLE PHASE
Page 15
SWITCHED FUSE ISOLATOR WITHIN
2m OF HEAT PUMP AND SIZED IN
ACCORDANCE WITH DATA SHEET
N L
L
N
5
INTERLOCK CALOREX
HEAT PUMP
6
SINGLE PHASE
9
10
SOFT START
SWITCHED FUSE ISOLATOR WITHIN
2m OF HEAT PUMP AND SIZED IN
ACCORDANCE WITH DATA SHEET
N L
L
N
5
INTERLOCK
6
9
10
SOFT START
CALOREX
HEAT PUMP
SINGLE PHASE