A.O. Smith T-D2-OS User Manual

T-D2-IN / T-D2-OS Service Manual
Ver. 1.00
46
CONFIDENTIAL
12. Controls and settings
12-1.
Diagnosis using the TM-RE30………………………………………………….…………………………………….……
47
12-2.
The error-code button: Verifying functionality of computer board, Displaying error code
history, and Clearing error code history memory….....................................................………...
50
12-3.
Clearing the “101” and “991” error code……………………………………………………………………………
51
12-4.
AFR rod function…………………………………………………………………………………………………………………
52
12-5.
Dipswitch settings….…………………………………………………………………………………………………………..
53
12-6.
Assigning unit numbers in the Easy-link system………………………………………………………………….
55
12-7.
(A) ON/OFF conditions: Overview...……………..……………………………………….……………………………
56
12-7.
(B) ON/OFF conditions: BTU requirements……………..……........................................................
57
12-8.
(A) Pump control ON/OFF conditions: (Only for single and Easy-link system)………………………
58
12-8.
(B) Pump control ON/OFF conditions: BTU requirements………………….………..........................
59
12-9.
Multi-unit system ON/OFF conditions……………….…………………………………...............................
60
12-10.
High-Altitude Region Support Functions (FM+, FM++ and FM+++)……………..………………..……
61
12-11.
Relay selection for the pump control connection………….………………….………………………………..
62
12-12.
Adjusting manifold gas pressure…………………………………………………………………………………………
63
12-13.
Manually adjusting the fan motor speed…………………………………………………………………………….
65
12-14.
Freeze protection system……………………………………………………………………………………………………
66
12-15.
Draining the unit and cleaning the inlet water filter………………………………………..………………….
69

A.O. Smith T-D2-OS Specifications

General

Brand	A.O. Smith
Model	T-D2-OS
Category	Water Heater
Language	English