Brochure
14
Installation Type Indoor, Outdoor, Direct Vent
Dimension 20-1/4” (H) X 13-3/4” (W) X 9-1/2” (D) , Weight:39 lbs
Electric 120 V 90 W / 0.75 A 6 W / 0.05 A 111 W / 0.93 A (Freeze-Protection)
Ignition Electronic Ignition
Noise Level 55 dB at Max output
Fuel NG LP
Gas Consumption
Min. Input 11,000 BTU/h 11,000 BTU/h
Max. Input 199,000 BTU/h 199,000 BTU/h
Energy Factor 0.82 0.82
Gas Pressure
Min 5.0" W.C. Min 8.0" W.C.
Max 10.5" W.C. Max 14.0" W.C.
Flow Rate 10.0 GPM
Values based on factory testing. 0.4 GPM required for continuous fire after initial
ignition
Hot/Cold/Gas
Connection
3/4" NPT
Coil Capacity ≈0.2 Gallons
Water Pressure 15-150 PSI
Pressure Only Relief Valve Requires (Min 200,000 btu/h, 150 PSI).
40 psi or above recommended for max. flow
Multiple Unit
Installation
Easy-Link System Up to 4 units With no need for a system controller
Multi-Unit System N/A N/A
D2
Temperature Settings
Dipswitches 104°F 113°F 122°F (default) 140°F
With 9007603005 remote (max. distance 400’ from heater, non-polarized 20 gauge wiring.)
100°F to 176°F (15 options), 122°F Default Factory Setting
Clearances to Combustible and
Non-Combustible Surfaces
Warranty Information**
Residential Use:
15 Years limited heat exchanger,
5 Years limited parts
Commercial Use:
10 Years limited heat exchanger,
5 Years limited parts
**Refer to www.takagi.com for further warranty
details.
Thicker heat exchanger drum and
utilizes commercial-grade copper (heat-
resistant) copper for the heat exchanger
tubing. Provides a variety of installation
options: indoor, outdoor, and direct vent.
Includes a pump control port, ensuring
efficient operation of all circulation
pumps. Easy-Link System capable up to
4 units.
Indoor
Installations
Outdoor
Installations
510: Pressure Loss
Flow Rate (gpm)
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)
D2: Flow Rate vs. Temperature Rise D2: Pressure Loss
T-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)
Temperature Rise (°F)
Specifications
Clearance
T-D2-IN includes both a remote control and
power cord as standard features.
Side 3”
Side 3”
Front 4”
(Recommended 24”
for maintenance)