A.O. Smith T-H2-DV User Manual

T-H2-DV/T-H2-OS Service Manual
Ver. 1.01
60
CONFIDENTIAL
Diagnostics information
3-digit 7-seg LED on the
computer board
TM-RE30
Mode
#**
unit information (#1 to #4)
Mode
#**
unit information (#1 to #4)
N/A
d
1
9
N/A
19
N/A
・・・
・・・
d25 25
Current value of Proportional
valve
d26 0 to 999 26 0 to 9,999 (×0.1mA)
The number of Combustion
stages
(T-H2-DV/T-H2-
OS has 4
stages for combustion.)
d27
“1” means 1
st
stage
“2” means 2
nd
stage
“3” means 3
rd
stage
“4” means 4
th
stage
“0” means No burning
27
“1” means 1
st
stage
“2” means 2
nd
stage
“3” means 3
rd
stage
“4” means 4
th
stage
“0” means No burning
Energization time of Unit d28 0 to 999 (×100 hours) 28 0 to 9,999 (×10 hours)
Estimated output from
Computer board
d29 0 to 999 (×1000 BTU/h) 29 0 to 9,999 (×100 BTU)
Actual output of Unit d30 0 to 999 (×1000 BTU/h) 30 0 to 9,999 (×100 BTU)
Integrating flow of Unit d31 0 to 999 (×10000 gallon) 31 0 to 9,999 (×1000 gallon)
Integrating output of Unit d32 0 to 999 MBTU (×10 MBTU)
32 0 to 9,999 MBTU
Mode #’s
will be displayed as a number (e.g. “1”, “2”,……, “32”) on th
e TM
-
RE30. On the
3
-
digit
7
-
Seg
LED on the computer board, Mode #’s will be displayed as hexadecimal values, going from “d1” to “d32”.
* Computer board: Press and hold the “Number display”
button on the computer board while in
mode# 14 for at least 3 seconds to completely clear the memory in the error code history.
* TM-RE30: Simultaneously press the “INFORMATION” button and the “BUZZER” buttons o
n the
TM-RE30 wh
ile in mode# 14 for at least 5 seconds to completely clear the memory in the error code
history.

A.O. Smith T-H2-DV Specifications

General

Brand	A.O. Smith
Model	T-H2-DV
Category	Water Heater
Language	English