Page 18
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Technical Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638160 ISSUE 22d
®
10
('Y
' V
ER
SIO
NS
O
NL
Y
)
SO
LEN
OID
VA
LV
E
11
MODEL
FUSE RATINGS
FUSE
PPT16ALX
3A
MODEL
OVERLOAD SETTING
PPT16ALX
19.0A
1
4
REMOTE ON/OFF
INTERLOCK
15
14
(WATER TEMP)
2
9
N/C
21
20
19
18
13
14
17
15
16
23
(L)
(DEFROST)
SENSOR
N/O
N/O
N/C
COM
COM
COM
COM
N/O
OUT2
OUT4
N/O
POOL STAT
10
12
OUT3
OUT1
LIVE
NEUTRAL
12
13
COMPRESSOR
R
S
C
RUN CAP
SOFT
START
SOFT START
THERMAL
OVERLOAD
& FAULT
LIGHT
START CAP
IF
FITTED
IF FITTED
HP SWITCH
LP SWITCH
BREAKS ON
PRESSURE
FALLING
BREAKS ON
PRESSURE
RISING
C
L
C
H
(N/C)
(N/C)
SENSOR
FLOW SWITCH
A1
A2
FAN
VO
LT F
REE
PO
OL PUM
P RUN
M
AX
3Am
ps
19
18
COMPRESSOR
O/LOAD ALARM
95
96
O/LOAD
4
2
6
CONTACTOR
3
1
4
2
(N/O)
(N/O)
5
6
(N/O)
3A
CONTROL FUSE
24
(N)
3
22
DIGI
T
AL IN
PU
TS
di1
di2
di4
di3
com
97 98
(N/O)
COMPRESSOR
O/LOAD ALARM
11
SUPPLY
RELAY/HARD
2 OFF PPT22
1 OFF PPT16
SOLENOID VALVE B
PPT22ALX ONLY
PPT22ALX
3A
PPT22ALX
29.7A
PPT16/22 ALX SINGLE PHASE 230V~1N 50Hz