- 2 -
CONTENTS
Specification ………….
2
Introduction …………..3
For your safety
…………..3-4
Installation ………….
5
•
General
………….
5
•
Accessories
………….
5
•
Outdoor
Installation
………….5-6
•
Indoor
Installation
………….6-7
•
Venting
Instructions
…………..7
-9
•
Gas Supply/Gas Pipe sizing………..10-11
•
Water Connection
…………. 11-12
•
Electrical Connection
…………. 12
•
Initial operation
…………. 13
Normal operation
…………. 13
•
Flow
………….
13
•
Temperature setting
…………. 14
•
Wiring diagram
…………. 15
•
Freeze Protection Device …………. 16
•
Maintenance and Service …………..16-17
•
Error
codes
…………..17
For your Safety
…………..18
Danger …………..19
Application …………..20
•
Space
Heating
…………..20
•
Dual-purpose
heating …………..21
•
Storage
Tank
…………..22
•
Re-Circulation
…………..22
Optional Items
…………..23
Manifold Multi-system
…………24-26
Component Diagram
…………27-30
Parts list
…………31-32
Output temperature Chart
…………..33
SPECIFICATIONS
Natural Gas Input
Min. 25,000 Btu
Max. 235,000 Btu
LPG Input
Min. 25,000 Btu
Max. 225,000 Btu
Gas Connection
¾” NPT
Water Connection
¾” NPT
Water Pressure
Min. 15 psi
Max. 150 psi
Natural Gas Pressure Inlet
Min. 5” WC
Max.
10.5”
WC
LP Gas Pressure Inlet
Min. 11” WC
Max. 14” WC
Manifold Pressure
Natural 2.2” WC
Propane 2.7” WC
Weight 70
lbs.
Dimensions 23.6”x18.5”x8.9”
Ignition Electronic
Ignition
Electrical Supply
AC 120 V
*** NOTE ***
•
Check the rating plate to ensure this
product matches your specifications;
•
This appliance is certified for use at
altitudes from 0ft to 4500ft (1,370m) in
accordance to the latest CAN/CGA 2.17-
High Altitude Installation procedures at
normal manifold pressure 2.2"
W.C. (Natural Gas). Do not alter the orifice
jets or gas supply pressure. At altitudes of
4500ft to 5,000ft (1524m) lower the
manifold pressure to 2.0" W.C.
(Natural
Gas). At 5000ft to 6000ft (1,829m), lower
the manifold pressure to 1.9" W.C. (Natural
Gas). For elevations above 6000ft or for
specific instructions on how to lower the
manifold pressure, please call the Takagi
office
Manufacturer reserves the right to discontinue, or change at any time, specifications or
designs without notice and without incurring obligations.
