Raypak 90- 180, 42, 66 User Manual

• Radiant Heating

• Hydronic Space Heating

• Snow Melting

Firing Mode

Models 42 & 66 – Single-stage firing
Models 90-180 – 2-stage firing

Non-Condensing

Operates at 105 °F return water temperature
without condensing – perfect for the low­temperature needs of radiant floor and snow
melting systems

Built-In Pump and Bypass

Offers maximum application flexibility

Honeywell IID Ignition

Standard S8600 IID eliminates off-cycle fuel
consumption; Standing pilot available on Models
90-180

“Spark-To-Hood” Pilot

Eliminates erratic pilot ignition and lockout

Motorized Vent Damper

Prevents heat loss during off-cycles

Non-Ferrous Waterways Option

All bronze pump and fittings and glass-lined
headers eliminate boiler oxygen permeation
problems associated with non-barrier radiant
tubing

Outstanding Warranty

One-year parts and service warranty against
defects

RESIDENTIALS

Inputs from

42,000 thru 180,000BTUH

The Raypak Residentials With five sizes to choose fr om, ther e is a copper fin tube Residential for every home, apartment

or condominium. Small enough to fit almost any space and fuel efficient for utility savings. Easy to install and service because
it’s complete right out of the box. Reliable because it’s a Raypak.

Easy to Install

• Lightweight; All sizes transportable by one
person.

• Weight of the largest model is 140 lbs.,
compared to an equivalent cast iron boiler at
over 300 lbs.

• One carton contains all components.

• Piping and wiring located at front.

Safe

• Over-temperature protection device with LED
display instantly shuts down boiler in a no-flow
condition.

• Safety features shut boiler down in the event of
a blocked flue or heat exchanger.

• ASME heat exchanger is inspected and stamped
for 160 psi operating pressure.

• 30 psi pressure relief valve.

Ratings shown are for elevations up to 2,000 feet. For elevations over 2,000 feet, ratings should be reduced 4% for each 1,000 feet above sea level. A front
clearance of at least 24 inches is recommended for adequate service of burner tray and controls. Circulator provided is not always suitable for systems having
high resistance. Consult data sheet for maximums. Complete installation dimensions available, see catalog # 2100.20.

Residentials - Models 42 – 180

AFUE Ratings

Tested with IID
ignition and vent
damper.

Model AFUE

H-0042 84.0
H-0066 83.0
H-0090 83.0
H-0135 83.0
H-0180 83.0

Results for standing
pilot models available.

Raypak, Inc.

2151 Eastman Avenue •Oxnard, CA 93030

805-278-5300 • Fax [phone]

www.raypak.com

0042 thru 0090 0135 thru 0180

Fig # 8978.2

Fig # 8978.5

Raypak, Inc. reserves the right to make product changes or improvements at any time without notice. Catalog No.: 2100.10-O Effective: 12-01-07 Replaces: 03-01-07 Litho in U.S.A. ©2007 Raypak, Inc.

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