Raypak 1334001 - Manual (Page 7)

7
INSTALLATION
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.
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.).
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.
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.