Hayward ENP2M-9A Service manual

Australia & New Zealand
30-LITINSH002 REV-A
Hayward Pool Products (Australia) Pty Ltd.
Melbourne-Sydney-Brisbane-Perth
Email: [email protected] Website: www.hayward-pool.com.au
P.O Box 4384, Dandenong South, Vic. 3164
ABN 66 083 413 414
Sales Ph 1300POOLS1 Fx 1300POOLS2

21
22
28
29
17
Timer

and in accordance with AS/NZS 3000 Wiring Rules.
AS/NZS 3000 Wiring Rules.

7524

Heating mode
If the temperature or humidity are outside of the ranges specied above, the built
in protection features could activate and shutdown the swimming pool heat pump.
35

ENP2M-9A
ENP3M-13A / ENP6M-21A

and fastening with appropriate fasteners
(bolts, screws, ect). Fasteners and washers not supplied.
The unit shall not be located any closer to the swimming pool than inside
zone 2 as explained in AS/NZS 3000 Wiring Rules.
The unit is supplied with two 48.3 mm Ø union connections to suit 40mm PVC pipe.
Connect the water inlet to the heat pump coming from the filtration group, then
connect the water outlet of the heat pump to the pipe going to the pool (see diagram
below).
from the filter Ø 48,3
to the pool Ø 48,3
If an automatic chemical distributor or a salt chlorinator is used, it should
be installed imperatively after the heat pump to ensure the protection of
the titanium condenser against elevated concentrations of chemicals.

AS/NZS 3000 Wiring Rules.
-9A
-13A
-21A
circulation pump via the Heat Priority Wiring on
Never connect a circulation pump directly to terminals 1 & 2.
on page 21.
Potential free Dry Ccontact
230V 7 Amps maximum

ENP2M-9A ENP3M-13A ENP6M-21AMODELS
-The electrical power supply to the unit must have a fuse protection device like
a feed motor (aM) or D curve circuit breaker.
-The electrical power supply must be supplied through a Residual Current
Device (RCD), with a rated residual operating current not exceeding 30mA.
-Models with hard wired power input circuits must be supplied through an
isolation switch in accordance with AS/NZS 3000 Wiring Rules.
Always isolate the power supply to the unit before opening the
electrical control box.

temperature change.
temperature change.

When on or off, it is suffice to press the button to see or
modify the set point.
It is recommended to never surpass a water temperature of 30°C in
vinyl lined pools to avoid warpage of the liner.

Before any maintenance operation, the heat pump must be
isolated from any electrical supply(s). The maintenance
operations must only be carried out by personnel that are qualified
and authorised to handle liquid refrigerants.
Isolate the power supply to the heat pump.

17
44
33
OUT1 OUT2
CN2
CN1
OUT3
AC-N
CN19
CN4
CN3
GND 12V
NET
GND DI01 GND GND GND GND
GND
GND
GND
GND
GND
AI01
OUT4
OUT5 PC1001
DI02 DI03 DI04 DI05 GND DI06
AI02
AI03
AI04
AI05
GND
AI06
CN1
CN2
CN6
CN19
5V CN16 GND
21
22
23
24
Primary transformer
Secondary transformer
Without use
Electronic expansion valve
Flow meter
CN6
GND
CN16
+5V
20
1.Connection of PCB illustration
Connections explanation：
1
2
3
4
OUT2 Water pump control - Dry contact 230V 7A max
OUT4 High speed of fan motor（220-230VAC）
OUT3
OUT1
No. Symbol Meaning
4way valve （220-230VAC）
Compressor of system1（220-230VAC）
NET GND 12V Wire controller
DI01 GND On/Off Switch(input)(no use)
No use
Flow switch (input)( normal close)
7
8
9
10
11
12
14
15
High pressure protect
Low pressure protect
5Neutral wire
AC-N
OUT5 Low speed of fan motor（220-230VAC）
6
16
AI01 GND
AI02 GND
AI03 GND
AI04 GND
17 AI05 GND
Water out temperature (input)
Water in temperature (input)
Ambient temp
Temperature of coil (input)
Suction temperature (input)
DI02 GND
DI03 GND
DI04 GND
DI05 GND
13 DI06 GND No use
18 AI06 GND
19 Exhaust temperature (input)

18
ENP2M-9A
FM
C2
BLK BLU
RED
N
N N
N
N N
N
N
N
13
2 4 5 67 8
01
N
：
To power supply
COMP
220-240V~/50Hz
CC CR
CS
BLK
RED WHT
CS CR
L N
RED BLU
N
CC
1
2
L N 1 2
N
K1 C1
L
K1 EEV
5
N
TC 12V Controller
4V
4V
K1
N
L
BRN BLU Y/G
LP
FS
FS
LP
LP
FS HP
HP
HP
t
5K
t
5K
t
5Kt
5K
IT
IT
OT
OT
AT
AT
CT
CT
OUT3
OUT4
OUT5
AC-N
3 4 3 4
CN19
GND
AI05
GND
AI04
GND
AI03
GND
AI02
GND
CN1
CN2
12V
NET
GND
DI01
GND
DI02
GND
DI03
GND
DI04
GND
DI05
GND
AI01
GND
DI06
GND CN6
AI06
CN16
GND
+5V
t
5K
SUT
SUT
OUT1 OUT2
4V
RED
N
BLU
Y/G
BRN
2 2
L 2 1
Dry contact
7A max
t
50K
ET
ET
AT：Ambient temperature
COMP：Compressor
CT：Coil temperature
FM：Fan motor
IT：Inlet water temperature
LP：Low pressure protection
OT：Outlet water temperature
4V：4 way valve
FS：Flow switch
TC：Transformer
HP：High pressure protection
SUT：Suction temperature
EEV：Electronic expand valve
K1：Relay coil of compressor
ET：Exhaust temperature