A.O. Smith T-D2-OS Service Manual page 49

On-demand water heater
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Mode #
Whole multi-unit system information (#0)
1
Total system flow rate 0 to 999 (×0.1 GPM)
2
Quantity of connected
3
T-D2-IN or T-D2-OS's
Priority T-D2-IN or
4
T-D2-OS unit
Quantity of operational
5
T-D2-IN or T-D2-OS's
6
Set temperature
Operation time during
7
current rotation
ON/OFF cycles during
8
current rotation
9
10**
11**
12**
13**
14**
15**
16**
* TM-RE30: Simultaneously press the "INFORMATION" button and the "BUZZER" buttons on the TM-RE30 while
in mode# 14 for at least 5 seconds to completely clear the memory in the error code history.
** Mode #'s after #9 will be displayed as a number (e.g. "10", "11",......, "16") on the TM-RE30. After #16, the
TM-RE30 will cycle back to #1 again.
Description of mode numbers in "Diagnostics Mode"
N/A
1 to 4 (units)
1 to 4 (unit #)
1 to 4 (units)
99 to 185 °F
0 to 720 (minutes).
After
720,
the
rotation occurs
0 to 100 (cycles).
After
100,
the
rotation occurs
N / A
T-D2-IN / T-D2-OS Service Manual
Unit information (#1 to #4)
Total operation time
ON/OFF cycles
Fan motor speed
Inlet temperature
Output temperature
Mixing temperature
Air-Fuel
ratio
next
current
next
Flow rate
Energization time of
unit
Integrating flow of Unit 0 to 9999 (×1,000 gallon)
Error code history: displays most recent error code
Error code history: displays 2
Error code history: displays 3
Clears memory in error code history*
Air-Fuel ratio stage
49
CONFIDENTIAL
0 to 9999 (hours)
0 to 9999 (×100 cycles)
0 to 9999 (rpm)
32 to 210 (°F).
Over 210°F=E5,
Under 32°F=E0
rod
0 to 999 (×0.1μA)
0 to 999 (×0.1 GPM)
0 to 9999 (×10 hour)
nd
most recent error code
rd
most recent error code
N / A
0 to 16, normal condition=6
Ver. 1.00

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