Specification

PRINTED IN U.S.A. 03/15 WP FORM NO. RR102C-2M-ULN Rev. 2
2
In keeping with its policy of continuous progress and product improvement, Rheem reserves the right to make changes without notice.
Rheem Water Heating • 101 Bell Road
Montgomery, Alabama 36117-4305 • www.rheem.com
Rheem Canada Ltd./Ltée • 125 Edgeware Road, Unit 1
Brampton, Ontario L6Y 0P5 • www.rheem.com
I N TEGR ATED AIR & WATER
INTEGRATED HOME COMFORT
DIMENSIONAL INFORMATION
All dimensions in English and Metric units
MODEL
NUMBER UNITS
G75UN
inches 64-1/8 60-1/4 26-1/4 14-1/4 4 11 52-1/4 1 33-3/4 300 Lbs
mm 1629 1527 667 362 102 279 1327 25 857 –
G100UN
inches 67-7/8 64 27-1/8 14-1/4 4 11 56-1/8 1 34-3/4 370 Lbs
mm 1724 1626 689 362 102 279 1426 25 883 –
RECOVERY CAPACITIES Recovery in U.S. Gallons/Hr. (GPH) and Liters/Hr. (LPH) at various temperature rises
MODEL INPUT (BTU/H) 40°F 50°F 60°F 70°F 80°F 90°F 100°F 110°F 120°F 130°F
NUMBER NATURAL UNITS
(22°C) (28°C) (33°C) (39°C) (45°C) (50°C) (56°C) (61°C) (67°C) (72°C)
G75UN 75,100
GPH 182 146 121 104 91 81 73 66 61 56
LPH 690 552 460 394 345 307 276 251 230 212
G100UN 75,100
GPH 182 146 121 104 91 81 73 66 61 56
LPH 690 552 460 394 345 307 276 251 230 212
MAXIMUM DELIVERY Delivery in U.S. Gallons and Liters. (Includes useable storage and recovery for indicated times)
MODEL CAPACITY INPUT (BTU/H) TEMP. 5 10 15 20 30 45 60 120 180 MIN. TO REC.
NUMBER GALS LITERS NATURAL & L.P. RISE UNITS MIN. MIN. MIN. MIN. MIN. MIN. MIN. MIN. MIN. CONTENTS
G75UN 75 284 75,100
100 °F GAL 59 65 71 77 89 107 125 198 271
62
55.6 °C LTR 224 246 267 292 337 405 474 750 1027
G100UN 98 371 75,100
100 °F GAL 75 81 87 93 105 123 141 214 287
81
55.6 °C LTR 283 306 329 352 398 467 536 812 1088
HT. TO
VENT
A
TANK
HEIGHT
B
DIAM.
C
HT. TO
GAS CONN.
D
VENT
SIZE
E
WATER
CONN. CTR
F
HT. TO SIDE
T&P VALVE
G
WATER
CONN. SIZE
H
FRONT TO
BACK
I
SHIP.
WEIGHT
Water
INTEGRATED HOME COMFORT
Commercial Gas
Medium Duty Ultra Low NOx
Water Heaters
Recommended Specifications
Water heater(s) shall be model _________________,
manufactured by Rheem, having gas input of __________
Btu/h and a recovery rate of _________ GPH at a 100°F
temperature rise. Water heater(s) shall have a storage
capacity of _________ gallons. Water heater(s) shall have
the CSA seal of certification and be factory equipped
with an CSA/ASME rated temperature and pressure
relief valve. Tank(s) shall have a coating of high tempera-
ture porcelain enamel and furnished with a magnesium
anode rod rigidly supported and a brass drain valve.
Water heater(s) shall meet or exceed the energy factor
requirements of ASHRAE. Tanks shall have a working
pressure rating of 150 psi, and shall be completely factory
assembled, including a pressure regulator properly
adjusted for operation on__________ gas. Controls will
be arranged for safety shutoff in event of pilot failure.
Complete unit shall be insulated with rigid polyurethane
foam insulation.
C
F
E
GA B
D
I
SIDE
TAPS
3/4" N.P.T
H
COLD
WATER
CONNECTION
H
HOT
WATER
CONNECTION