User Guide

16 • On-Demand Rack System
MAINTENANCE / SPECIFICATIONS
SPECIFICATIONS: FREE STANDING 41.54” FRAME WIDTH
Basics (all configurations)
Rack/Frame Dimensions
Refer to the next page.
Frame Material
Marine grade aluminum 6061-T6 or 5052-H32 (0.08 in. thickness)
Cold Water Header
2” dia. Copper Tube
Hot Water Header
2” dia. Copper Tube
Gas Line Header
1-1/2” Sch. 40, A53A, Blk
Water Connectors to Heaters
2’ long, 3/4” dia. Stainless Steel Flex Line
Gas Connectors to Heaters 3’ long, 3/4” dia. CSST
* IN - Indoor Model; OS - Outdoor Model
Heater
540 / T-H3, IN/OS*, NG/LP, 199,000 BTU/h
Number of Heaters
2
Total Input (BTU/h)
398,000
Max. Flow at 50°F ΔT (gpm)
15.2
Max. Flow at 60°F ΔT (gpm)
12.6
Max. Flow at 70°F ΔT (gpm)
10.8
Max. Flow at 80°F ΔT (gpm)
9.4
Max. Flow at 90°F ΔT (gpm)
8.4
Max. Flow at 100°F ΔT (gpm)
7.6
* IN - Indoor Model; OS - Outdoor Model
Two Units
Heater
540 / T-H3, IN/OS*, NG/LP, 199,000 BTU/h
Number of Heaters
3
Total Input (BTU/h)
597,000
Max. Flow at 50°F ΔT (gpm)
22.8
Max. Flow at 60°F ΔT (gpm)
18.9
Max. Flow at 70°F ΔT (gpm)
16.2
Max. Flow at 80°F ΔT (gpm)
14.1
Max. Flow at 90°F ΔT (gpm)
12.6
Max. Flow at 100°F ΔT (gpm)
11.4
* IN - Indoor Model; OS - Outdoor Model
Three Units
Heater
540 / T-H3, IN/OS*, NG/LP, 199,000 BTU/h
Number of Heaters
4
Total Input (BTU/h)
796,000
Max. Flow at 50°F ΔT (gpm)
30.4
Max. Flow at 60°F ΔT (gpm)
25.2
Max. Flow at 70°F ΔT (gpm)
21.6
Max. Flow at 80°F ΔT (gpm)
18.8
Max. Flow at 90°F ΔT (gpm)
16.8
Max. Flow at 100°F ΔT (gpm)
15.2
* IN - Indoor Model; OS - Outdoor Model
Four Units