Installation

General Specifications

The Raypak water heaters are design certified and tested under the latest requirements of the American National Standard, ANSI Z21.10.3/CSA 4.3. Each heater has been constructed and pressure tested in accordance with the requirements of Section IV of the American Society of Mechanical Engineers Code, and factory fire tested.

All Models (Approved)

All models are National Board approved. Temperature and pressure gauge is standard. Intermittent ignition device is standard on models 0514 and up.

Model 0133 has 4-pass heat exchanger, 1 tube per pass.

Models 0181-0401 have 2-pass heat exchangers, 5 tubes first pass, 4 tubes second pass.

Models 0514-1826 have 2-pass heat exchangers, 5 tubes first pass, 4 tubes second pass.

Models 2100-4001 have 2-pass heat exchangers, 9 tubes per pass.

Models 0926-4001 have optional single pass with cast iron headers only.

Hot Water Supply Heaters

All Raypak hot water supply heaters are ASME rated and design certified as hot water heaters, with 125 PSI pressure relief valves.

TYPE WH1 with ON/OFF CONTROLS Models 0133-4001

To be used with storage tank systems. Available with integrally mounted pump, factory mounted and wired for models 0133-1826. Models 0181, 0261, 0331 and 0401 are Low NOx Hot Water Heaters.

TYPE WH2 with MODULATING CONTROLS

Models 0133-4001

Hot water supply heater with 110°-170°F gas modula- tion. Available with integrally mounted pump, factory mounted and wired for models 0133-1826. To be used with storage tank systems.

TYPE WH3 with 2-STAGE

CONTROLS

Models 0181-4001

Hot water supply heater with low-high fire for 2-stage control. Available with integrally mounted pump, facto- ry mounted and wired for models 0181-1826. To be used with storage tank systems.

Installation Codes

Installation must be in accordance with local codes, or, in the absence of local codes, with the latest editions of the National Fuel Gas Code, ANSI Z223.1/NFPA 54, and the National Electrical Code, ANSI/NFPA 70. In Canada installations must conform with the current CAN/CSA B149 and the Canadian Electrical Code Part 1 CSA C22.2 No.1. Where required by the author- ity having jurisdiction, the installation must conform to American Society of Mechanical Engineers Safety Code for Controls and Safety Devices for Automatically Fired Heaters, CSD-1.

Installation base

The heater should be mounted on a level, non-com- bustible surface. Heater must not be installed on carpeting. The heater can be installed on a com- bustible surface only when the appropriate listed floor shield base is provided. An optional listed floor shield base is available for factory installation with the heater on all indoor models. Do NOT use the shipping base crate as an installation base.

NOTE: The heater should be located in an area where water leakage will not result in damage to the area adjacent to the appliance or to the structure. When such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the appliance. The pan must not restrict air flow.

In addition, the heater shall be installed such that the gas ignition system components are protected from water (dripping, spraying, rain, etc.) during appliance operation and service (circulator replacement, control replacement, etc.).