Raypak Raytherm - Type WH 962-1826 - Manual

Catalog No.: 3500.23D Effective: 1-15-08 Replaces: 7-15-04
Job:
Engineer:
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Prepared By: Date:
Model:
EFFICIENT
82% thermal efficiency – highest of any atmospheric
water heater available today
THERMAL SHOCK PROOF
Twenty-year warranty against thermal shock damage
up to 150°F differential
Maximum operating temperature: 210°F
LIGHTWEIGHT
A floor load of 70 lbs./sq. ft. or less
HIGH RECOVERY
Cuts fuel costs substantially because the standby and
radiation losses associated with tank-type
water heaters are eliminated
LOW WATER OPERATING TEMPERATURE
Operates with water temperature as low as 105°F
without condensing
Heat Exchanger
ƒ ASME Inspected and Stamped
160 PSIG
ƒ National Board Approved
ƒ Headers
Bronze – Standard
Glass-lined Cast Iron – Option A-2
ƒ Fin Tubing
Copper – Standard
Cupro Nickel – Option A-3
ƒ ASME Steel Tube Sheet
ƒ Silicone
O-Rings
ƒ 125 PSIG ASME Pressure Relief Valve
ƒ Temperature and Pressure Gauge
ƒ Water
Connections
Left Hand – Standard
Right Hand – Option A-6
ƒ Two-pass Flow Configuration
ƒ Pump, Rear-mounted, 1/2 HP,
120 VAC, 1
∅, 60 Hz – Optional
4.25” Impeller
4.7” Impeller
Controls
ƒ 120V, 60Hz, 1 Ph Power Supply
ƒ 120/24V
Transformer
ƒ 100% Pilot Shut-off/Lockout
ƒ Electronic, Intermittent Ignition (IID)
Pilot
Controls (cont.)
ƒ High Limit Control, Manual Reset –
200°F
ƒ On/Off Switch
ƒ Flow Switch
ƒ Economaster II Pump Time Delay
Gas Control Train
ƒ Manual Main Gas Shut-off Cock
ƒ Main Gas Pressure Regulator
ƒ Redundant Safety Shut-off Valve
ƒ Control Valve
ƒ Firing
Mode
On/Off
2-stage Firing
Mechanical Modulation
ƒ Fuel
Natural Gas
Propane Gas
ƒ Design Certified ANSI Z21.10.3
Construction
ƒ Front
Controls
ƒ Stainless Steel Burners
ƒ PolyTuf Powder Coat Finish
ƒ Vent
Selection
Drafthood – Option D-10
Motorized Draft Inducer –
Option D-2
ƒ Base – Optional
Combustible Floor Shield –
Option J-1
Temperature Controls
B-2 Single-Stage Tankstat
(100-180°F)
B-3 2-Stage Tankstat (100-180°F)
Y-241 Electronic Sequencer,
1-4 Stages
Y-281 Electronic Sequencer,
1-8 Stages
Additional Safety Controls
F-9 Low Water Cut-off Probe
I-3 High Limit Control, Auto
Reset, 180°F
S-1 Low Gas Pressure Switch,
Manual
S-2 High Gas Pressure Switch,
Manual
Regulatory Agency Requirements
CSD-1 Safety Controls
INDOOR
Raytherm ® - Type WH
Water Heaters
Commercial
Models 962-1826 (Indoor)