Plumbing Connections. Waterco Turbotemp Gas Pool & Spa Heater, Turbotemp 400HD

Section 3. Installation

I pg 12

PLUMBING CONNECTIONS

The Turbotemp heater has the unique capability of direct schedule 40

PVC plumbing connections. A set of bulkhead fittings is included with the

Turbotemp to insure conformity with

Waterco’s recommended PVC plumbing procedure. Other plumbing connections can be used. See Figure 3 for plumbing connections.

POOL

HEATER

MANUAL

BY-PASS

TO

POOL

GATE

VALVE

FILTER

PUMP

Figure 3.

FROM POOL

!

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. If a manual by-pass is installed, temporarily close it to insure that all air is purged from the heater.

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-siphoning. Backsiphoning is most likely to occur when the pump stops, creating a pressure-suction differential. Do NOT sanitize the pool by putting chlorine tablets or sticks into the skimmer(s). When the pump is off, this will cause a high concentration of chlorine to enter the heater, which could cause corrosion damage to the heat exchanger.

!

CAUTION

Exercise care when installing chemical feeders so as to not allow back siphoning of chemical into the heater, filters or pump. When chemical feeders are installed in the circulation of the piping system, make sure the feeder outlet line is down stream of the heater, and is equipped with a positive seal noncorrosive “Check Valve”, (P/N

R172288), between the feeder and heater.

MANUAL BY-PASS

( WATER FLOW RATE)

Where the water flow rate exceeds the maximum 454 LPM, a manual bypass should be installed and adjusted. After installing the valve, adjust the valve to bring the flow rate within the acceptable range.

Then remove the valve handle or lock it in place to avoid tampering.

See Figure 4.

Table 1.

Model Min. LPM (GPM) Max. LPM (GPM) *

200

300

76 (20)

114 (30)

454 (120)

454 (120)

400 152 (40) 454 (120)

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

See page 32 for Pressure Relief Valve Installations.

Cool water

Warm water out

1. Set Manual

By-Pass Valve.

2. Remove Handle.

Outlet to pool

Figure 4.

Inlet to heater