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PART 5. PIPING
D. WATER HEATING PIPING
1 Use only the pipe sizes shown and a pump meeting the listed specifications in the following tables:
*NOTE:
Individual Appliance Piping pressure drop used in the tables is based on 20 feet of straight pipe, 6 elbows,
2 tees, 2 full port ball valves and 2 unions.
2) The city cold water supply to the water heating system should be connected between the appliance outlet and the
storage tank or the storage tank directly. This will help minimize unnecessary short cycling due to small hot water
draws. Higher efficiency can be obtained through use of our optional CWIS™—Cold Water Injection System in any
Hamilton Storage Tank.
3) Isolation valves should be installed on each appliance and on the cold and hot water system connections.
Upon completion of piping, fill and properly purge of all air. Open all valves and start circulating pump. Consult the
Manufacturer for specific piping diagrams for your application.
NOTE:
Minimum pump selection is based on piping sizes shown below and water hardness not to exceed 12 grains
per gallon and total maximum equivalent piping length of 60 feet.
(TABLE 5-2) WATER HEATER PIPING
Model
GPM ∆P*
Design ∆T
Minimum Manifold Pipe Size
Single
Double
Triple
Quad
HW 800
51.4@12'
30.0 ˚F
16.7 ˚C
2"
3"
4"
6"
HW 1000
30.0 ˚F
16.7 ˚C
2.5"
4"
4"
6"
HW 1500
35.0 ˚F
19.4 ˚C
2.5"
4"
6"
6"
*Water heater and piping as described above.
Summary of Contents for XL800
Page 6: ...6 PART 1 GENERAL INFORMATION As a Stand Alone Appliance HOT CONTROL MENU NAVIGATION ...
Page 7: ...7 PART 1 GENERAL INFORMATION Appliance as Part of a Cascade HOT CONTROL MENU NAVIGATION ...
Page 19: ...19 PART 2 ELECTRICAL B INTERNAL WIRING CONNECTION continued XL BCB LAYOUT ...
Page 21: ...21 PART 2 ELECTRICAL XL CASCADE BOX ...
Page 31: ...31 PART 4 VENTING Direct Vent Terminal Clearances ...
Page 33: ...33 PART 4 VENTING Other Than Direct Vent Terminal Clearances continued ...
Page 69: ...69 PART 10 PARTS BREAKDOWN 1A 1B PART 10 PARTS BREAKDOWN 2 ...
Page 70: ...70 PART 10 PARTS BREAKDOWN 3 4 5 6 7 8 9A 9B 9C 10 4 ...