Installation Sheet

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CONTENTS
NOTE
*All references to the 910 (T-M50) also refer to the
910 ASME (T-M50 ASME) model
*Check the rating plate to ensure this product
matches your specifications.
*In accordance with ANSI Z21.10.3,
CO emission does not exceed 400 PPM for
normal input.
SPECIFICATIONS
Natural Gas Input
(Operating Range)
Min: 15,000 Btu/h
Max: 380,000 Btu/h
Propane Input
(Operating Range)
Min: 15,000 Btu/h
Max: 380,000 Btu/h
Gas Connection 1” NPT
Water Connections 1” NPT
Water Pressure 15 - 150 psi *
Natural Gas
Inlet Pressure
Min. 5.0” WC
Max. 10.5” WC
Propane
Inlet Pressure
Min. 8.0” WC
Max. 14.0” WC
Manifold Pressure** Natural: 2.8” WC
Propane: 3.8” WC
Weight 102 lbs.
Dimensions
H25.3”×W24.8”×D11.8”
Ignition Electric Ignition
Electric
Supply 120 VAC / 60 Hz
Consumption
Operation
178 W
(1.48A)
Standby
16 W
(0.13A)
Freeze-
Protection
271 W
(2.26A)
SPECIFICATIONS……………………….
INTRODUCTION…………………………
SAFETY GUIDELINES
………………....
INSTALLATION…………………………..
General…………………………………
Included Accessories…….……………
Warning for Installations………………
Outdoor Installation……………………
Indoor Installation…………………......
Direct Intake Vent System…………….
Venting Instructions………………......
Gas Supply / Gas Pipe Sizing………..
Water Connections……………………
Pressure Relief Valve…………………
Electrical Connections……………......
Remote Controller Connection………
Pump Control Connections......……...
Pump Control Mode……………………
Easy-Link System
………………………
Multi-Unit System………………………
Initial Operation………………………..
NORMAL OPERATION………………….
Normal Operation…………………......
Flow……………………………………..
Freeze Protection System…………...
Temperature Settings………………….
Maintenance and Service…………….
GENERAL
TROUBLESHOOTING……..
OPERATING SAFETY………………...
…
APPLI
CATIONS
………………………......
Re-Circulation…………….................
..
Dual-Purpose Heating………………...
ADDITIONAL CL
EARANCES……………
OPTION
AL ITEMS………...……………..
COMPONENT
S DIAGRAM…………….
PARTS LIST………………………………
OUTPUT TEMPERATURE CHART……
LIMITED WARRANTY
……………….......
2
3
5
6
7
7
8
9
10
11
1
2
1
6
1
9
1
9
20
21
22
23
24
2
7
29
30
30
32
32
33
34
35
3
8
40
4
0
4
1
4
2
4
3
4
4
4
8
5
1
51
The manufacturer reserves the right to discontinue, or change at any time,
specifications or designs without notice and without incurring obligations.
*40 psi or above is recommended for maximum flow.
**The Manifold Pressure is the factory setting and
generally should not need adjustment.