Product Guide

Specifications
D2: Pressure Loss
Set temperature: 122°F or lower
Set temperature: 131°F or higher
Head (ft)
100
110
120
70
60
90
80
50
40
30
10
20
0
8.0 10.06.0402.00.0
50
45
40
35
30
25
20
15
10
5
0
Pressure Loss (psi)
13-3/4" (350mm)
10" (254mm)
1-3/4" (45mm) 1-3/4" (45mm)
1-3/8" (36mm)
21-3/8" (544mm) 20-1/4" (520mm)
1-7/8" (47mm)
HOT
5-1/4" (133mm)
120V 1-3/8" (36mm)
GAS 4-7/8" (124mm)
COLD 3-1/4" (84mm)
4-3/8" (113mm)
1-5/8" (43mm)
19-3/8" (493mm)
COLD 2-7/8" (71mm)
1" (26mm)
HOT 6-1/2" (164mm)
9-1/2" (241mm)
120VAC 3-7/8" (99mm)
GAS 5-1/4" (135mm)
4" (101 mm)
Indoor and Outdoor Installation Options
Power Vent or Power Direct Vent Design
Low NOx Emissions
4” Category III Vent
Flow Rate up to 10.0 GPM
• Values based on factory testing. 0.4 GPM required for
continuous fire after initial ignition
Water Pressure: 15-150 psi
• Pressure Only Relief Valve Requires (Min 199,000 btu/h,
150 psi).
• 40 psi or above recommended for max. flow
Dimensions
D2: Flow Rate vs. Temperature Rise
Set temperature: 122°F or lower
Set temperature: 131°F or higher
140120100806040200
12
10
2
4
6
8
0
Flow Rate (gpm)
Easy-Link up to 4 heaters
Warranty
• 15-year limited warranty on heat exchanger in residential
applications.
• 5-year limited warranty on heat exchanger in commercial
applications.
• 5-year warranty on all parts.
• Refer to takagi.com for further warranty details
D2: Flow Rate vs. Temperature Rise
Temperature rise (°F)
Flow rate (gpm)
D2: Pressure Loss
Flow Rate (gpm)
Pressure Loss (psi) Head (ft)
16