Rheem VentMaster GP100-150 User manual
VentMaster Power Direct Vent Gas Commercial Water Heaters
Available in 100 Gallon Tank-Type Models
150,000 BTU/Hr. Thru 250,000 BTU/Hr.
VentMaster power direct vent gas commercial water heaters by Rheem-Ruud
are designed to fill the need wherever large quantities of hot water are
required. Typical installations include restaurants, hotels, laundromats and
multiple family housing.
Construction Features:
• Non-condensing design –
helps prevent corrosion –
no condensate pump or drain
needed.
• Integral automatic blower –
with 110/120 volt electrical
system.
• Patented multi-flue tank design –
proprietary steel formulation,
patented multi-flue design, and
two coats of high temperature
porcelain enamel to maximize
corrosion resistance result in a
superior heat exchanger design.
• Spark-To-Pilot ignition system –
standard on both models.
Provides reliable and energy sav-
ing ignition sequencing by igniting
the pilot only when the thermostat
calls for heat.
• Base rail design –
for better handling when moving
and positioning the unit.
• System Sentinel™LED
diagnostic system –
our exclusive diagnostic system,
with glowing LED lights, verifies
system operation sequence by
sequence.
• Full port, full flow brass drain
valve
• Temperature and pressure
relief valve –
AGA/ASME rated and factory
installed.
• Hand-hole cleanout –
for removal of lime/sediment
deposits.
• Gas control system –
fully adjustable thermostat from
100° F to 180° F, 24 volt
combination gas valve includes
main gas pressure regulation,
on-off manual valve, 120/24 volt
transformer, and high limit
temperature cut-out.
Certifications and Ratings:
• Efficiency – these models have been tested according to ANSI test
procedures, and meet or exceed thermal efficiency and standby loss
requirements of current ASHRAE standards. (Part of the Federally
mandated Energy Policy Act (EPact)). Also exceeds energy efficiency
codes of all states including California Energy Commission (CEC).
• Safety and construction – these products are design certified by CSA:
a) For operation up to 180°F. b) To meet all safety and construction
requirements of ANSI Z21.10.3. c) As an automatic storage or instanta-
neous water heater. d) As an automatic circulating tank water heater.
e) For operation on combustible floors and in alcove installations.
All models are North Carolina Code compliant.
CERTIFIED FOR A 150 PSI MAXIMUM WORKING PRESSURE
(160 PSI FOR ASME MODELS).
• Optional construction – ASME construction is available on designated
models.
Continued on reverse.
Negative Air Pressure
Issues Are Eliminated
By Drawing
Combustion Air
From Outside
The Building
Installs With
3" Or 4"
Schedule 40
PVC Pipe
No Masonry
Or Metal Vent
Chimney
Required
120V/1.5 Amps
Required
(On Selected
Models)
MODEL INPUT 40°F 50°F 60°F 70°F 80°F 90°F 100°F 110°F 120°F 130°F 140°F
NUMBER BTU/HR. UNITS (22°C) (28°C) (33°C) (39°C) (45°C) (50°C) (56°C) (61°C) (67°C) (72°C) (78°C)
GP100-150 150,000 GPH 364 291 242 208 182 161 146 132 122 112 104
LPH 1380 1103 917 788 690 610 553 500 462 424 394
GP100-200 199,900 GPH 485 388 323 277 242 215 194 176 162 149 138
LPH 1838 1471 1224 1050 917 815 735 667 45 565 523
GP100-250(A)
250,000 GPH 606 485 404 346 303 269 242 220 202 186 173
LPH 2294 1835 1529 1311 1147 1020 918 834 765 706 655
RECOVERY CAPACITIES
Recovery in U.S. Gallons/Hr. (GPH) and Liters/Hr. (LPH) at various temperature rises.
MODEL
NUMBER SIDE REAR TOP
GP100-150 2" 6" 18"
GP100-200 51mm 153mm 459mm
GP100-250(A)
VentMaster continued.
Minutes
MODEL TANK CAP. INPUT TEMP. 5 10 15 20 30 45 60 to Rec.
NUMBER GALLONS BTU/HR. RISE UNITS Min. Min. Min. Min. Min. Min. Min. Contents
GP100-150 100 150,000 100 °F GAL 82 94 106 119 143 179 216 40
37.7 °C LTR 311 356 402 451 542 678 819
GP100-200 100 199,900 100 °F GAL 86 102 118 135 167 215 264 31
37.7 °C LTR 326 387 448 510 632 815 999
GP100-250(A) 100 250,000 100 °F GAL 90 110 131 151 191 252 312 25
37.7 °C LTR 341 418 494 571 724 953 1183
MAXIMUM DELIVERY
In U.S. Gallons and Liters. (Includes useable storage and recovery for indicated times.)
WATER CONNECTIONS APPROXIMATE
MODEL FRONT REAR SHIPPING
NUMBER UNITS ABCDEFG IN/OUT SIDE WEIGHT
GP100-150
inches
81-3/4 68-1/4 30-1/4 24-3/4 3 59 3/4 2 2 860 lbs.
GP100-200
mm 2076 1734 768 629 76 1499 19 51 51 390 kgs.
GP100-250(A)
inches
81-3/4 68-1/4 30-1/4 24-3/4 4 59 3/4 2 2 860 lbs.
mm 2076 1734 768 629 101 1499 19 51 51 390 kgs.
DIMENSIONAL INFORMATION All dimensions in English and Metric units.
Water heater(s) shall be model _______________________, manufactured by RHEEM-RUUD, having gas input of ________________ Btu/hr. and a recovery rate
of ___________ GPH at a 100°F temperature rise. Water heater shall have a storage capacity of ______________ gallons. Water heater shall have the CSA seal of
certification and be factory equipped with an AGA/ASME rated temperature and pressure relief valve. Tank shall have a coating of high temperature porcelain enam-
el and furnished with a magnesium anode rod rigidly supported. Water heater shall meet or exceed the energy factor requirements of ASHRAE. Tank shall have a
working pressure rating of 150 psi, and shall be completely factory assembled, including a pressure regulator properly adjusted for operation on natural gas with a
stainless steel burner. Water Heater shall have a spark-to-pilot ignition system. Controls will be arranged for
safety shutoff in event of pilot failure. Complete unit shall be insulated with fiberglass insulation. Water
Heater shall be covered by a three year limited warranty against tank leaks.
• Add for ASME construction – water heaters shall be constructed in accordance with the requirements
or the ASME Boiler and Pressure Vessel Code, Section IV Part HLW.
This product features a three year limited warranty against tank leaks. Please refer
to Commercial Warranty Information brochure for complete warranty information.
Recommended Specifications:
Limited Warranty:
COMMERCIAL
WATER HEATERS
Rheem Water Heating • 101 Bell Road, Montgomery, Alabama 36117-4305 • www.rheem.com
Rheem Canada Ltd./Ltée,128 Barton Street West, Hamilton, Ontario L8N 3P3
PRINTED IN U.S.A 11/06 WP FORM NO. RR102C-16 Rev. 4
In keeping with its policy of continuous progress and product improvement, Rheem-Ruud reserves the right to make changes without notice.
C
E
A
BF
D
G
CLEARANCE TO COM-
BUSTIBLES (inches and mm)
Rear dimension,
add 4" (102mm)
clearance for intake
(A) Suffix Indicates ASME Tank Construction Available.
This manual suits for next models
4
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