Raypak 122-322 Water Heater User Manual


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Catalog No.: 3500.19D Effective: 11-15-07 Replaces: 7-15-05
Hi Delta – Type WH
Models 122-322 Model
OPTIONAL ELECTRICAL CONNECTION
OPTIONAL GAS CONNECTION
K
COMBUSTION AIR
11
10-3/8
16-3/4
LEFT SIDE
3-3/4
8-1/2
15-13/16
ELECTRICAL CONNECTION
GAS CONNECTION 3/4"
13-3/4
WATER OUT
H
T
FRONT
WATER IN
H
TOP
A
FLUE CONNECTION
18
7-15/16
B
19-3/4
RIGHT SIDE
26-1/8
OPTIONAL PUMP COVER
OPTIONAL PUMP
(11.22)
(9.35)
PUMP LOCATION AND ORIENTATION
MAY VARY WITH UNIT CONFIGURATION
RATES OF FLOW AND PRESSURE DROPS
10ºF ∆T 20ºF ∆T
MIN. FLOW MAX. FLOW
MODEL GPM
∆P (ft)
GPM
∆P (ft)
GPM
∆P (ft) ∆T
GPM
∆P (ft) ∆T
WH 122 20 2.5 N/A N/A 20
2.5
10 30 5.4 7
WH 162 27 4.5 N/A N/A 20
2.5
14 30 5.5 9
WH 202 35 5.5 N/A N/A 20
2.6
17 35 5.5 10
WH 242 41 10.4
21 2.7
20
2.7
21 44 11.8 9
WH 322 N/A N/A
27 4.7
20 2.7 27 44 12.2 12
Basis is 20 GPM for minimum flow, 44 GPM for maximum flow (except for 1.25” header).
NOTES: 1. Rates shown are for natural or propane gas, and elevations up to 5,000 feet. For installations above 5,000 feet, please contact manufacturer.
2. Required natural gas pressure is 7 – 10.5” WC. Required propane gas pressure is 11 - 13” WC.
WATER HEATER RECOVERY RATES (GPH)
TEMPERATURE RISE IN ºF
MODEL 20º 30º 40º 50º 60º 70º 80º 90º 100º
WH 122 618 412 309 247 206 177 155 137 124
WH 162 824 549 412 330 275 235 206 183 165
WH 202 1030 687 515 412 343 294 258 229 206
WH 242 1236 824 618 495 412 353 309 275 247
WH 322 1648 1099 824 659 549 471 412 366 330
SPECIFICATIONS
MBTUH FIRING A B H K T
MODEL INPUT OUTPUT STAGES NPT
WH 122 120 102 1* 24-7/8 10-3/4 1-1/4 4 5
WH 162 160 136 1* 28-1/2 12-9/16 1-1/4 5 5
WH 202 199 169 1* 32-1/8 14-3/8 1-1/4 5 5
WH 242 240 204 1* 35-1/2 16-3/16 1-1/2 5 5
WH 322 320 272 1* 42-5/8 19-13/16 1-1/2 6 5
* 2 stage optional
Dimensions are in inches.
Raypak, Inc. 2151 Eastman Avenue, Oxnard, CA 93030 (805) 278-5300 Fax (800) 872-9725 www.raypak.com
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