Sigma Electrical Connection & Circuit Diagram, AS-H40Y12KW AS-H50Y15KW AS-H60Y18KW

ELECTRICAL CONNECTION & CIRCUIT DIAGRAM

IMPORTANT. It is recommended that all electrical supplies and connections are carried out by a qualified electrician, in accordance with I.E.E. standards, latest issue, or local codes of practice as applicable.

Also recommended is a protected supply to incorporate fuses or motor type circuit breaker (Type C) to specified rating (see Data Sheet page 19).

An earth leakage trip (R.C.D) of the current operating type (30mA) is recommended to be fitted to all pool electric's.

Minimum/Maximum Voltage requirements.:

Single phase machines	50Hz 207v		253v
Three phase machines	50Hz	360v	440v
Cycle Frequency	50Hz	47.5Hz 52.5Hz

N.B. This voltage must be available at the heat pump whilst running.

A 40 AMP / 2 Pole Contactor is required to interlock heat pump and circulation pump i.e. heat pump only functions when pool circulation pump is running. A flow switch (provided & optional - see page 5) can also be installed as an extra precaution in the event that there is a loss of water flow (i.e. circulation pump deprimes).

NOTE - PLEASE CHECK CONTINUITY OF FLOW SWITCH BEFORE INSTALLING.

AS-H40Y (12KW) AS-H50Y (15KW) AS-H60Y (18KW)
SINGLE PHASE (1-N 50HZ)
	Transformer
High Pressure
Protection	Flow Switch
	Compressor
	Relay
Protective
Circuit Breaker
Heat Pump	4-Way Valve
Main Terminals

Remove Link to	Link
wire flow switch	or
(see page 6)	Flow Switch

POWER SUPPLY

230V/50HZ

L

L

N N

Control wires	N				A1	A2
from circulation
pump starter
	L			CONTACTOR
			40AMP 2 POLE
		Contactor required to
		interlock heat pump with
			circulation pump

9