Pentair PowerMax Water Connections, Plumbing Connections, Reversible Inlet/Outlet Connection

Installation (contd.) 14

WATER CONNECTIONS

Reversible Inlet/Outlet Connection

The MiniMax Plus heater is factory assembled with right side inlet/outlet water connections. The inlet/ outlet header can be reversed for left side water connections without removing the heat exchanger.

Reversing Water Connections Disassembly

Tools needed:

1/4 in Nut Driver

9/16 in. Socket and Wrench 1/2 in. & 9/16 in. Open Wrench

1.Remove the inspection plates.

2.Disconnect all wires from the high-limit switches except the short jumper wire. The exact order of the disconnection is not impor- tant.

3.Disconnect the pressure switch wiring.

4.Remove the temperature sensing bulb from the in/out header. Note: You may cut the wire bundle ties.

5.Exchange the in/out header with the return header. Replace the heat exchanger tube seals with new seals provided in the Quick-Flange Accessory Bag.

6.Install the temperature sensing bulb by passing the wires through the hole provided on the left side of the brace panel. Route wires through the support bracket.

7.Reconnect all the high limit wires. Reconnect the pressure switch wiring. Route the wires through the same hole as the thermostat sensor wires.

8.Reinstall the inspection plates.

PLUMBING

VALVES

When any equipment is located below the surface of the pool or spa, valves should be placed in the circulation piping system to isolate the equipment from the pool or spa.

Check valves are recommended to prevent back siphon.

CAUTION

Exercise care when installing chemical feeders so as to not allow back siphoning of chemical into the heater, filters or pump.

			TO		PUMP
			POOL
	POOL	MANUAL		FILTER
			ISOLATION
	HEATER	3 BY-PASS
			VALVE
		1 CHECK
		VALVE
			ISOLATION
			VALVE
1	Optional.			VALVECHECK 2
2	Required when installation is below water level.			FROM
				POOL	Figure 12.
3	Required when flow rates exceed 120 gpm.

PLUMBING CONNECTIONS

The MiniMax Plus heater has the unique capability of direct schedule 40 PVC plumbing connections. A Quick-Flange has been included with the MiniMax Plus to insure conformity with PurexTriton’s recom- mended PVC plumbing procedure. Other plumbing connections can be used. The instructions on page 13 show methods for successfully connecting plumbing to the inlet/outlet header, with the Quick-Flange.

CAUTION

Before operating the heater on a new installation, turn on the circulation pump and bleed all the air from the filter using the air relief valve on top of the filter. Water should flow freely through the heater.

Do not operate the heater unless water in the pool/ spa is at the proper level.

MANUAL BY-PASS

Where the flow rate exceeds the maximum 120 GPM, a manual bypass should be installed and adjusted. After adjustments are made, the valve

handle should be removed to avoid tampering.

Model	Min.	Max. *
150	20	120
195/200	20	120
250	30	120
300	30	120
350	40	120
400	40	120

* Do not exceed the maximum recommended flow rate for the connecting piping.

Table 6.

BELOW POOL INSTALLATION

If the heater is below water level, the pressure switch must be adjusted. This adjustment must be done by a qualified service technician.

P/N 471048 Rev. G 1-22-04