Aquacal 120, 155 Plumbing Requirements, Overview, Parts and Materials, In-LineChlorine Feeders

INSTALLATION

Plumbing Requirements

Overview

When planning plumbing system layout, reference the plumbing schematics within this section as a guide to the sequence of equipment, valves, fittings, etc. The plumbing configurations for typical instal- lations are diagrammed. In operation, it is imperative the heat pump receive water flow within the minimum-maximum ranges specified for the particular heat pump. Should the system installation under consideration not closely match any of the schematics, contact AquaCal Technical Support Group for advice and guidance: (800) 786-7751.

Parts and Materials

Industry technology changes much too rapidly for AquaCal to specify, with exactness, any items out- side and beyond the heat pump. What is specified is that the heater must be installed in accordance with all applicable local, state, or national codes & standards.

In-Line Chlorine Feeders

The titanium heat exchanger tube is nearly impervious to chemical damage; however, other parts of the heater may be damaged by concentrated chlorine. Caution: Per chlorinator manufacturers’ rec- ommendations, always place in-line chlorinators as low, and as far downstream from the heater as possible.

Maintain Ability to Winterize

In regions where hard freeze conditions are typical, the unions mentioned below allow for easy discon- nection and re-connection of the heater from/to the plumbing system. Caution: Do not defeat the function of the unions–use no glue on the threaded portion of the unions.

Water Connections to Heat Pump

All AquaCal heat pumps are supplied with 2" PVC plumbing unions. Connection to site plumbing is made via PVC solvent cement to the female slip socket of the plumbing unions.

Maximum Operating Pressure: 50-PSI

Minimum - Maximum Water Flow Rates

•All AquaCal 100, 120, and 155 models are designed to operate successfully at flow rates of 20- to-70 gallons-per-minute (GPM).

•Design the plumbing system to maintain at least 20-GPM flow through the heater; the heat pump will not operate correctly, nor reliably, with less than 20-GPM of water flow supplied.

•If water flow rates through the heater will exceed 70-GPM, a spring-check bypass valve will be required. Please contact AquaCal Engineering Group to obtain the valve specification specific to your installation (800-786-7751).

•Generally speaking, most residential pools and spas will not require a plumbing bypass unless a pump of two (2) horsepower, or larger, is used. For bypass valve placement details, see plumbing schematic contained on next page: “…Flow Greater than 70-GPM.”

CAUTION !	Failure to heed the following may result in damage to
	equipment.

Use of an incorrect bypass valve may compromise the heat pump’s efficiency, reliability, and may void the factory warranty. Please contact AquaCal Engineering Group to obtain the valve specification specific to your installation (800-786-7751).

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