Multiple Unit Cold Water Start, Mbtuh, Gpm

MULTIPLE UNIT COLD WATER START

Total System Load	Three-Way Diverting Valve Specifications
(MBTUH)	Valve Size	Cv	GPM	P
500-900	2” NPT	57	70	3.5’
901-1,800	2-1/2” NPT	74	100	4.2’
1,801-3,000	2-1/2” NPT	100	150	5.2’
3,001-4,000	4” Flange	152	220	4.8’
4,001-6,000	4” Flange	254	330	3.9’
6,001-8,000	4” Flange	327	440	4.2’

Notes:

2.Many variables can impact the proper valve sizing for multiple boilers. This sizing is provided as a guide. When in doubt consult the factory.

3.Multi-unit system ALWAYS shipped loose- Not available mounted.

4.4” flanges, bolts and gaskets supplied by others. Multi-units with 4” valves are to be used on hydronic heating only. The valve body is cast iron.

Catalog No.: 1000.19C Effective: 06-15-08 Replaces: 01-01-07 Raypak Inc., 2151 Eastman Ave., Oxnard, CA 93030 (805) 278-5300 Fax (800) 872-9725