Brochure
28
Top 12”
Side 3”
Side 3”
Top 36
”
Side 3
”
Side 3
”
Bottom 12”
Bottom 12”
Back .5
”
Back .5
”
Front 4”
(Recommended 24”
for maintenance)
Front 4”
(Recommended 24”
for maintenance)
Installation Type Indoor, Outdoor, SCH 40 PVC Direct Ven , Category IV Stainless Steel
Dimension 23-5/8" (H) X 17-3/4" (W) X 11-1/4" (D) , Weight: 59 lbs
Electric 120 V 89 W / 0.74 A (Operation) 4 W / 0.04 A (Standby) 175 W / 1.5 A (Freeze-Protection)
Ignition Electronic Ignition
Noise Level IN: 51 dB OS: 56 dB at Max output
Fuel NG LP
Gas Consumption
Min. Input 15,000 BTU/h 13,000 BTU/h
Max. Input 199,000 BTU/h 199,000 BTU/h
Energy Factor 0.95 0.95
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 ≈0.5 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 Up to 20 units Multiple-Unit Controller 9008300005
H3
Temperature Settings
Built In / without
remote
120°F (Default) 140°F
With 9009069005 remote (max. distance 400’ from heater, non-polarized 160 gauge wiring.)
100°F to 160°F with 5°F intervals (13 options), 120°F Default Factory Setting
Thicker heat exchanger drum and
utilizes commercial grade-copper for
the heat exchanger tubing. Provides
a variety of installation options:
outdoor, and direct vent. Complies
with SCAQMD Rule 1146.2 and other
air quality management districts with
similar NOx Emission requirements of
14 ng/J or 20 PPM. Easy-Link System
capable up to 4 units. Multi-Link
System capable up to 20 units.
H3: Pressure Loss
H3: Flow Rate vs. Temperature Rise
540H: Pressure Loss
0
5
10
15
20
25
30
35
40
45
50
Pressure Loss (psi)
20
40
60
80
100
Head (ft)
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
Flow Rate (gpm)
Set temperature: 125°F or lower
Set temperature: 130°F or higher
0
Specifications
Outdoor
Installations
Direct Vent
Installations
Clearances to Combustible
and Non-Combustible
Surfaces
Clearance
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.
0
1
2
3
4
5
6
7
8
9
10
20 40
540H: Flow Rate vs. Temperature Rise
60 80 100 120 140
Set temperature: 125°F or lower
Set temperature: 130°F or higher
11
Indoor model includes a built-in temperature controller
and advanced diagnostics to simplify troubleshooting.
Outdoor models includes a wall mount temperature
remote controller and advanced diagnostics to simplify
troubleshooting.
Top 12”
Side 3”
Side 3”
Top 36
”
Side 3
”
Side 3
”
Bottom 12”
Bottom 12”
Back .5
”
Back .5
”
Front 4”
(Recommended 24”
for maintenance)
Front 4”
(Recommended 24”
for maintenance)