Raypak Raytherm H-181 User manual

Catalog No.: 2000.203E Effective: 12-1-07 Replaces: 4-1-05
Job:
Engineer:
Contractor:
Prepared By: Date:
Model: Indoor
LOW NOx
Less than 40 nanograms per joule
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 V, 1∅,60 Hz
Controls
120V, 60Hz, 1 Ph Power Supply
120/24V Transformer
100% Pilot Shut-off/Lockout
Electronic, Intermittent Ignition (IID) Pilot
Controls (cont'd)
High Limit Control, Manual Reset
On/Off Switch
Flow Switch
Economaster II Pump Time Delay
Gas Train
Natural Gas
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)
Design Certified
ANSI Z21.13 H Stamp
Construction
Front Controls
Stainless Steel, Fan-Assisted
Burners
Polytuf Powder Coat Finish
Draft Diverter
Base – Optional
Combustible Floor Shield –
Option J-1
Temperature Controls
B-6 2-stage Aquastat –
100-200ºF
B-26 2-stage Digital Controller
B-27 2-stage Digital Controller,
Outdoor Reset
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
S-1 Low Gas Pressure Switch
S-2 High Gas Pressure Switch
Regulatory Agency Requirements
Raytherm
®
- Type H
Hydronic Heating Boilers
Models 181-401 - Indoor
Low NOx

Catalog No.: 2000.203E Effective: 12-1-07 Replaces: 4-1-05
Raytherm - Type H
Hydronic Heating Boilers - Indoor Model
Dimensions (Inches) Shipping Weight
(Lbs.) – Approx.
Model
No. MBTU Input MBTU Output AFUE (%) Width A Height C J Flue Dia. K No Pump w/ Pump
H-181* 181 148 82.6 18-1/4 62-5/8 12-1/16 6 191 221
H-261 264 216 82.7 22-3/8 62-7/8 11-1/8 7 214 244
H-331 334 274 N/A 25-3/4 63-3/4 10-3/4 8 234 264
H-401* 399 327 N/A 29-1/4 65-3/8 12-1/2 9 253 283
* Exceptions on H3 (two-stage-fired) models:
-Model H3-181 has an 18-1/4” gas connection
-Model H3-401 has 375 MBTU Input and 308 MBTU Output
NOTE: Ratings shown are for elevations up to 2,000 feet. For elevations over 2,000, reduce ratings at the rate of 4% for each
1,000 feet above sea level.
BOILER RATE OF FLOW AND PRESSURE DROP
10° ∆T 20° ∆T 30° ∆T
Model
No. GPM ∆P FT GPM ∆P FT GPM ∆P FT
H-181 30 4.2 N/A N/A N/A N/A
H-261 43 8.5 22 2.2 N/A N/A
H-331 N/A N/A 27 3.4 N/A N/A
H-401 N/A N/A 33 5.2 22 2.3
N/A – Not Applicable
Low NOx
*
Raypak, Inc. 2151 Eastman Avenue, Oxnard, CA 93030 [phone] Fax [phone] www.raypak.com