Raypak 122-322 - Manual (Page 2)

Catalog No.: 2000.18C Effective: 11-15-07 Replaces: 7-15-05
Hi Delta 122-322
Type H - Hydronic Heating
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
APPROX.
MBTUH AFUE FIRING A B H K T SHIP WT.
MODEL INPUT OUTPUT (%) STAGES NPT (LBS.)
H 122 120 101 84 2* 24-7/8 10-3/4 1-1/4 4 5 225
H 162 160 134 84 2* 28-1/2 12-9/16 1-1/4 5 5 240
H 202 199 167 84 2* 32-1/8 14-3/8 1-1/4 5 5 255
H 242 240 202 84 2* 35-1/2 16-3/16 1-1/2 5 5 270
H 322 320 269 N/A 2* 42-5/8 19-13/16 1-1/2 6 5 300
Dimensions are in inches. * 1 stage optional
RATES OF FLOW AND PRESSURE DROPS
10ºF ∆T 20ºF ∆T 30ºF ∆T MIN. FLOW MAX. FLOW
MODEL GPM ∆P (ft) GPM ∆P (ft) GPM ∆P (ft) GPM ∆P (ft) ∆T GPM ∆P (ft) ∆T
H 122 20 2.5 10 <1.0 N/A N/A 10 <1.0 20 30 5.3 7
H 162 27 4.5 13 1.1 N/A N/A 10 <1.0 27 30 5.4 9
H 202 34 7.2 17 1.85 11 <1.0 10 <1.0 34 30 5.5 11
H 242 40 10.0 20 2.65 14 1.3 10 <1.0 40 44 11.8 9
H 322 N/A N/A 27 4.7 18 2.2 14 1.35 40 44 12.2 12
Basis is 10 GPM or 40°F ∆T 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. Recommended natural gas pressure is 7 – 10.5” WC. Recommended propane gas pressure is 11 - 13” WC.
Raypak, Inc. ƒ 2151 Eastman Avenue, Oxnard, CA 93030 ƒ (805) 278-5300 ƒ Fax (800) 872-9725 ƒ www.raypak.com