Raypak 182-400 User Manual
Raytherm, Type h, Hydronic heating boilers
 
Catalog No.: 2000.205D
Effective: 1-1-08
Replaces: 4-1-05
Job:
Engineer:
Contractor:
Prepared By:
Date:
Model:
Indoor
EFFICIENT 
 82% efficiency – highest of any atmospheric boiler 
available today
THERMAL SHOCK PROOF 
 Twenty-year warranty against thermal shock damage 
up to 150°F differential
Maximum operating temperature: 230°F
LIGHTWEIGHT 
 A floor load of 70 lbs./sq. ft. or less 
HIGH RECOVERY 
 Cuts fuel costs substantially because the standby and 
radiation losses normal to other boilers and 
tank-type water heaters are eliminated 
LOW WATER OPERATING TEMPERATURE 
 Operates with water temperature as low as 
105°F without condensing
Heat Exchanger 
 ASME Inspected and Stamped 
160 PSIG
 National Board Approved 
 Headers 
 Cast Iron Glass-lined – Standard 
 Bronze – Option A-1 
 Finned
Tubing
 Copper – Standard 
 Cupro Nickel – Option A-3 
 ASME Steel Tube Sheet 
 Silicone 
O-Rings
 ASME Pressure Relief Valve
 45 PSIG – Standard 
 PSIG ASME – Optional 
 Temperature and Pressure Gauge,
Shipped Loose
 Water
Connections
 Left Hand – Standard 
 Right Hand – Option A-6 
 Flow Configuration – Two-pass 
 Pump – Optional 
Mounted, 1/8 HP, 120 Volt, 1
∅, 60 Hz
Controls 
 120V, 60Hz, 1 Ph Power Supply 
 120/24V 
Transformer
 100% Pilot Shut-off/Lockout 
 Electronic, 
Intermittent Ignition (IID) Pilot
 High Limit Control, Manual Reset 
 On/Off 
Switch
 Flow
Switch
 Economaster II Pump Time Delay
Gas Control Train 
 Manual Main Gas Shut-off Cock 
 Main Gas Pressure Regulator 
 Redundant Safety Shut-off Valve 
 Control Valve 
 Firing 
Mode
 On/Off (H4) 
 Two-stage Firing (H3) 
 Mechanical Modulation, 
110-170°F (H5)
Mechanical Modulation,
150-210°F (H1)
 Fuel
 Natural Gas 
 Propane Gas 
 Design Certified ANSI Z21.13
Construction 
 Front 
Controls
 Stainless Steel Burners 
 Polytuf Powder Coat Finish 
 Vent 
Selection
 Draft Diverter – Option D-10 
 Power Vent, Loose – Option D-2 
 Base
(Optional)
Combustible Floor Shield –
Option J-1
 
 
Temperature Controls
Note: H1 and H5 do not require a
controller
B-6
Two-stage – 100-200ºF
Y-241 Electronic Sequencer,
1-4 Stages
Y-281 Electronic Sequencer,
1-8 Stages
Additional Safety Controls
 F-10 Low Water Cut-off Probe 
 I-1 
High Limit Control, Auto 
Reset, 240°F 
S-1
Low Gas Pressure Switch, 
Manual 
S-2
High Gas Pressure Switch, 
Manual 
Regulatory Agency Requirements
Raytherm
®
- Type H
Hydronic Heating Boilers
Models 182-400 - Indoor