Remote Control Connections - Waterco Electroheat ECO-V Installation And Operation Manual

13 I Pool Heat Pump

Remote Control Connections

1. Switch off power to heat pump at main circuit breaker panel/isolator.
2. Unbolt and remove the front access panel.
3. Open control box cover.
4. To connect a 2-Wire Control such as Waterco Aquamaster™:
ii) Locate the main printed circuit board and cable connected to terminal WS
(water switch) or find the cable connected to the water switch mounted on the
heat exchanger inside canister the unit.
COMM
ii) Cut one of the two water switch cables WS and connect the two ends of the cut
cable separately to the two ends of the incoming external controller cable and
make electrically safe. Use 1mm2 minimum cable size with a minimum 1.2mm
thick insulation rated for a temperature of at least 105°C / 221°F.
5. Close control box cover.
6. Re-install the access panel. To control heaters that are operated in parallel, connect
wiring at same locations on heater control. It is imperative that each control circuit
is isolated from the other control circuits; to avoid current flow from one heater to
another through the control circuits.
N-0
water switch
485
COMM
^ to water switch
cut
CN301
CN500
CN502
CN108 CN106 CN103 CN100
CN102 CN105 CN107 CN104 CN101
incoming external
controller cables
GND GND
GND
CN822
WS
CN823
HPS
CN700 (YLW)
GNDLinkage switch
CN409 CN408
GND
SW
CN821
CN824
LPS
C
C
C
C
C
C
C