Energy Tech Laboratories 8320, 6310, 5310 operating instructions Water Connections, Pressure Drop

Model No.	VAC in - Phase - Hz	Minimum Circuit	Maximum Breaker
		Ampacity (A)	Size (A)
5310	208/230 - 1 - 60	38.2	50
6310	208/230 - 1 - 60	33.45	60
	208/230 - 3 - 60	25.45	50
8320	208/230 - 1 - 60	37.45	60
	208/230 - 3 - 60	33.3	60

Table A: Typical System Electrical Power Requirements

This unit is pre-wired to work with external control sys- tems, heat-on-demand options and other external time clock overrides. Refer to the external control system’s instructions, and page 22 of this manual, for installa- tion information.

Water Connections

CAUTION: The heat pump pool heater inlet and outlet connections are NOT interchangeable. They must be connected as instructed below.

1.Connect the heat pump pool heater in the return water line between the filter and the pool/spa. See the Plumbing Diagrams beginning on page 16.

2.Connect the filter outlet to the fitting marked WATER IN at the bottom front of the unit.

3.Connect the fitting marked WATER OUT to the return piping to the pool/spa. Unit inlet/outlet con- nection fittings are 2-inch PVC unions.

Water connections from the unit to the main return line can be PVC pipe or flexible pipe approved for

the purpose and, in either case, should be at least equal in size to the main pool/spa circulation pip- ing.

WATER IN

WATER OUT

Fig. 2: Water Connections

4.In cold weather (freeze zone) areas, shutoff valves (ball or gate type) must be installed at the unit inlet and outlet to facilitate service and cold weather drain-down.

5.Operate the pump and check the system for leaks.

Pressure Drop

For system pressure drop information, refer to Table B below.

Flow		Pressure Drop (psi)
(gpm)	5310	6310	8320
10	1	1	1
20	2	3	3
30	4	6	9
40	7	9	9
50	10	10	10
60	11	11	11

Table B: Pressure Drop Across Heat Pump Pool Heater

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