Unit Lockouts; Electric Data Table; Upm Led Status Indicator (Blink Code) Information - Bosch Greensource CDi TW Series Installation, Operation And Maintenance Manual

Greensource CDi Series TW Model

Unit Lockouts

Periodic lockouts almost always are caused by
water flow problems. The lockout (shutdown) of
the unit is a normal protective measure in the
design of the equipment. If continual lockouts
occur call a mechanic immediately and have them
check for: water flow problems, water
temperature problems. Use of the pressure and
temperature charts for the unit may be required to
properly determine the cause.

Electric Data Table

Voltage
Models
Code
TW025
1
TW035
1
TW049
1
TW061
1
TW122
1
Table 11 Electric data table
UPM LED Status Indicator (Blink Code)
Information
The LED status indicator is found on the UPM
boards. See Fig. 9 on page #16 for the UPM Board.
Indication
Color Blinks
GREEN Solid
RED 1
RED 2
RED 3
RED 4
RED 5
RED 6
Table 12 UPM LED Status Indications
Greensource CDi Series TW Model
Voltage
Rated
Min/
Voltage
Max
208–230/
197/253
60/1
208–230/
197/253
60/1
208–230/
197/253
60/1
208–230/
197/253
60/1
208–230/
197/253
60/1
Description
18–30 VAC power is present
High-pressure lockout
Low-pressure lockout
Freeze 1 sensor lockout
Condensate overflow
Brownout
Freeze 2 sensor lockout
Subject to change without prior notice
Compressor
QTY RLA
1 11.7
1 15.6
1 21.2
1 26.9
2 26.9
See Fig. 11 on page #19 for the UPM II Board.
Indication
Color Blinks
GREEN Solid
RED 1
RED 2
RED 3
RED 4
RED 5
RED 6
RED 7
Table 13 UPM I I LED Status Indications
Troubleshooting | 33
Min
LRA Circuit
Amps
58.3 14.6
83.0 19.5
104.0 26.4
139.0 33.6
139.0 60.5
Description
18–30 VAC power is present
High-pressure lockout —
Circuit 1
Low-pressure lockout —
Circuit 1
High-pressure lockout —
Circuit 2
Low-pressure lockout —
Circuit 2
Freeze sensor lockout
Condensate overflow
Brownout
8733954853 (2020/04)
Max
Fuse/
HACR
25
35
45
60
80