Raytherm® - Type WH
Job:
Engineer:
Contractor:
Prepared By:
Model:
Water Heaters
Commercial
Models 2100 - 4001
Indoor Date:
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
INDOOR
LOW WATER OPERATING TEMPERATURE
ꢀ Operates with water temperature as low as 105°F
without condensing
Heat Exchanger
Gas Control Train
Water Heater Controller
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ASME Inspected and Stamped
160 PSIG
National Board Approved
Headers
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Manual Main Gas Shut-off Cock
Required on Model WH2 only
B-17 Modulating Controller
(104-220°F), Mounted
By Others
Main Gas Pressure Regulator
Redundant Safety Shut-off Valve
Control Valve
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Bronze – Standard
Firing Mode
Temperature Controllers
B-2 Single-Stage Tankstat
(100-180°F), Loose
Glass-lined Cast Iron – Option A-2
Fin Tubing
On/Off (WH1)
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2-stage Firing (WH3)
Motorized Modulation (WH2)
Fuel
Natural Gas
Propane Gas
Design Certified ANSI Z21.10.3
Copper – Standard
B-3 2-Stage Tankstat (100-180°F),
Loose
Y-241 Electronic Sequencer,
1-4 Stages
Y-281 Electronic Sequencer,
1-8 Stages
Cupro Nickel – Option A-3
ASME Steel Tube Sheet
Silicone O-Rings
125 PSIG ASME Pressure Relief Valve
Temperature and Pressure Gauge
Water Connections
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Construction
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Front Controls
Left Hand – Standard
Right Hand – Option A-6
Two-pass Flow Configuration
Additional Safety Controls
Stainless Steel Burners
Baked Enamel Paint
Built-in Draft Diverter
Draft Inducer – Optional
Motorized Draft Inducer –
Indoor – Option D-2
F-9 Low Water Cut-off Probe
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I-3
High Limit Control, Auto Reset,
180°F
Controls
S-1 Low Gas Pressure Switch,
Manual
S-2 High Gas Pressure Switch,
Manual
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120V, 60Hz, 1 Ph Power Supply
120/24V Transformer
100% Pilot Shut-off/Lockout
Electronic, Intermittent Ignition (IID) Pilot
High Limit Control, Manual Reset – 200°F
High Limit Control, Auto Reset – 200°F
Models 3001-4001
Regulatory Agency Requirements
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On/Off Switch
Flow Switch
Economaster II Pump Time Delay
CSD-1 Safety Controls
Catalog No.: 3500.24B
Effective: 1-15-08
Replaces: 7-15-04
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