Raypak XTherm Series User Manual (English)

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INSTALLATION & OPERATING

INSTRUCTIONS

CATALOG NO. 3400.57A Effective: 08-01-17 Replaces: 08-18-14 P/N 241549 Rev. 2

WARNING: Improper installation, adjustment, alteration, service or maintenance can

cause property damage, personal injury, exposure to hazardous materials* or loss of

life. Review the information in this manual carefully. *This unit contains materials that

have been identified as carcinogenic, or possibly carcinogenic, to humans.

FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors and

liquids or other combustible materials in the vicinity of this or any other appliance. To

do so may result in an explosion or fire.

WHAT TO DO IF YOU SMELL GAS:

• Do not try to light any appliance.

• Do not touch any electrical switch; do not use any phone in your building.

• Immediately call your gas supplier from a neighbor’s phone. Follow the gas

supplier’s instructions.

• If you cannot reach your gas supplier, call the fire department.

Installation and service must be performed by a qualified installer, service agency or

the gas supplier.

This manual should be maintained in legible condition and kept adjacent to the heater or in a safe place for future

reference.

Models 2505–4005

Types H, WH & P

ULTRA HIGH EFFICIENC

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Raypak XTherm Series Specifications

General

Category	Swimming Pool Heater
Brand	Raypak
Fuel Type	Natural Gas or Propane
Series	XTherm
Ignition Type	Electronic
Dimensions (H x W x D)	Varies by model
Warranty	5 years on heat exchanger, 1 year on parts

Summary

WARNINGS

Pay Attention to These Terms

Defines the hazard terms used throughout the manual, including DANGER, WARNING, CAUTION, and NOTE.

BEFORE INSTALLATION

General Information

GENERAL SAFETY

Provides crucial safety information regarding water temperatures, scald hazards, and proper usage.

INSTALLATION

Installation Codes

Lists the essential codes and regulations that must be followed during installation.

Outdoor Installation

Combustion and Ventilation Air

Details requirements for supplying adequate and uncontaminated combustion air.

Controls

Air Filter

Conventional Combustion Air Supply

Covers air supply methods, including direct vent and conventional intake.

Water Piping

Applications & Modes

Mode 2 (Type H Units Only)

Details on Mode 2 operation for hydronic heating systems with indirect DHW.

Mode 3 (Type H Units Only)

Details on Mode 3 operation for hydronic heating with indirect DHW on the boiler loop.

WH - Direct DHW Configuration

Explains the direct DHW configuration for WH units.

Pool Heating

Potable Water and Space Heating

Gas Supply

Covers gas supply requirements, connections, and safety precautions.

Electrical Power Connections

Field-Connected Controllers

Making the Electrical Connections

Step-by-step guide for making electrical connections to the unit.

Field Wiring Connection

Wiring the Enable/Disable

Instructions for connecting the Enable/Disable wiring for unit operation.

Wiring the System Sensor

Procedure for wiring the system sensor for temperature monitoring.

Wiring the Outdoor Sensor

Guidelines for connecting the outdoor sensor for temperature compensation.

Venting

Vertical Venting (Category IV)

Specific instructions for installing vertical Category IV venting systems.

Horizontal Through-the-Wall Direct Venting (Category IV)

Direct Vent-Vertical

Installation

Instructions for installing direct vent systems with vertical termination.

Condensate Management

Ignition Control Functions

User Interface

Internal Flow Diagram

WIRING DIAGRAM - Models 2505-4005

START-UP

Pre Start-up

Pre Start-up Check

Initial Start-up

Preparation

Start-Up

Check Gas Supply Pressure

Procedure for verifying gas supply pressure using manometers.

Raypak XTherm Series User Manual

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