Raypak 42-180 Fascicule

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Catalog No.:  2100.20M 
Effective:  6-15-07 
Replaces:  6-15-02 
Job: 
 
           
 
Engineer: 
 
           
 
Contractor: 
 
           
 
Prepared By: 
            
 Date: 
            
 
Model: 
             
 Indoor/Outdoor:  
           
 
 
 
Applications 
ƒ Radiant 
Heating 
ƒ  Hydronic Space Heating 
ƒ Snow 
Melting 
High Efficiency 
Heating efficiencies meet or 
exceed NAECA standards. 
Factory Installed Circulator 
and Bypass 
Thermostatically-controlled 
circulator maintains proper flow 
through the boiler. As a packaged 
system, installation is fast and 
easy. 
Electronic Ignition 
Intermittent pilot ignition improves 
system efficiency by using fuel 
only when there is a call for heat. 
Compact, Lightweight Design 
Even the largest model slips 
easily into tight spaces. 
Easy to Plumb, Easy to Service 
Inlet and outlet water piping, gas 
connection, wiring and controls 
are all up front for easy access. 
Safe Operation 
Built-in manual reset safety 
sensors shut down the boiler in 
the event of a flame roll-out or 
flue gas spillage. Normal working 
pressure is 125 PSI max. 
Fast Response Temperature 
Sensor 
Electronic solid state auto-reset 
control shuts down the boiler in 
the event of over-heating caused 
by a low-flow condition. 
 
 
Heat Exchanger 
ƒ  ASME Inspected and Stamped 
160 PSIG 
ƒ  National Board Approved 
ƒ  Glass-lined Cast Iron Headers 
ƒ Copper 
Finned 
Tubing 
ƒ  ASME Steel Tube Sheet 
ƒ Silicone 
O-Rings 
ƒ  30 PSIG ASME Pressure Relief Valve 
ƒ  Temperature and Pressure Gauge 
ƒ  Cast Iron Pump – 120 VAC, Mounted 
ƒ Bypass 
Assembly 
 Non-Ferrous Options 
ƒ  All Bronze Pump, 120 VAC, Mounted 
ƒ Bronze 
Fittings 
 
 
Controls 
ƒ  120V, 60Hz, 1 Ph Power Supply 
ƒ 120/24V 
Transformer 
ƒ Pilot 
 Electronic, Intermittent Ignition 
(IID) - Standard 
 Standing (Thermocouple) - 
Models 90, 135 and 180 only 
ƒ  100% Pilot Shut-off/Lockout (IID only) 
ƒ High 
Limit 
Control 
ƒ  Operating Limit Control 
ƒ Flow 
Sensor 
ƒ  Flue Gas Spillage Sensor 
ƒ  Flame Rollout Sensor 
ƒ  Automatic Vent Damper 
Gas Control Train 
ƒ Fuel 
 Natural Gas 
 Propane Gas     
ƒ Firing 
Mode 
- On/Off - Models 42-66 
- Two-stage Firing - Models 90-180 
ƒ  Combination Gas Valve 
- Manual Shut-off 
- Redundant Valve Features 
- Gas Pressure Regulator 
Construction 
ƒ Indoor 
Construction 
ƒ  Enclosed Front Controls 
ƒ  Stainless Steel Burners 
ƒ  Polytuf Powder Coat Finish 
ƒ  Built-in Draft Diverter 
ƒ  Certified for combustible flooring 
 
 
 
 
Raytherm™ Residentials
Hydronic Heating Boilers
Models 42-180
AFUE Ratings* 
Model AFUE 
0042 84 
0066 83 
0090 83 
0135 83 
0180 83 
*Tested with IID ignition and vent damper
 
Fig. #8942