FORM 155.21-O1 (615)
15
JOHNSON CONTROLS
2
Condition
System Details
Display Message
Chilled liquid flow opens
greater than 2 seconds
Dilution cycle interrupted
– chilled water off
Condenser water flow
opens greater than 30
seconds
Dilution cycle interrupted
– Cond water off
Solution pump contacts
open
Solution pump
overloads open
Refrigerant pump
contacts open
Refrigerant pump
overloads open
34°F (1.1°C) less than
refrigerant temp less than
or equal to 35.5° (1.9°C)
Low refrigerant temp
RT8 is less than 35.5°F
(1.9°C)
33°F (.55°C) less than
refrigerant temp less than
34°F (1.1°C)
Low refrigerant temp RT8
is less than 34°F (1.1°C)
solution pump is off
Refrigerant temp less than
or equal to 33°F (0.56°C)
Low refrigerant temp
analog RT8 is less than
33°F (0.56°C)
Low refrigerant temp
safety device open
Low refrigerant temp
digital LRT opened
Strong solution temp
g r e a t e r t h a n 3 3 0 ° F
(166°C)
Generator Hi temp analog
switch RT3 is greater than
330°F (166°C)
Generator High temp
safety device open
Generator Hi temp digital
switch HT1 opened – Man
reset
3F opening = ref pump
shutdown delay setpoint
After 30 sec. delay, dilu-
tion cycle terminated –
switch 3F opened.
Motor coolant float switch
is open for 0.5 sec. (units
with Franklin pumps
only)
Low motor coolant level -
MCFL switch opened
Generator shell pressure
is greater than or equal to
672mmHg (analog)
Generator Hi pressure
analog switch PT1 greater
than 672 mmHg
High pressure (digital)
safety device open
Generator Hi-Pressure
digital switch HP1 open
Auxiliary safety shutdown
contact is open
Auxiliary safety
shutdown
Remote/Local cycling
contact is open
Unit shutdown by remote
device
Multi-Unit cycling contact
is open
Unit shutdown by multi
-unit remote
Manual Dilution Cycle
– is only available in the “Sys-
tems” screen when the panel is set to “Service” access
level. The manual dilution key will NOT show in the
“View” or “Operator” access level screens. When the
manual dilution key is pressed when the unit is not run-
ning (unit switch in stop position), a pop up box will
appear to confirm the start of the manual dilution cycle.
Press the “
” key to confirm the dilution cycle and the
refrigerant, solution, generator (Franklin pumps 10E3
– 14F3 only), condenser and chilled liquid pumps will
operate for 6 minutes. To terminate the dilution cycle
press the manual dilution key again and confirm “Stop
dilution cycle (Yes/No)” by pressing the “
” key in the
pop up box.
Condition
System Details
Display Message
Chilled liquid flow opens is
greater than 2.0 seconds
Dilution cycle interrupted
– chilled water off
Condenser water flow
opens is greater than 30
seconds
Dilution cycle interrupted
– Cond water off
Solution pump contacts
open
Solution pump overloads
open
Refrigerant pump
contacts open
Refrigerant pump
overloads open
Refrigerant temp is less
than or equal to 33°F
(0.56°C)
Low ref temp analog
RT8 is less than 33°F
(0.56°C)
Low refrigerant temp
safety device open
Low ref temp digital LRT
opened
Generator High temp
safety device open
Gen hi-temp dig switch
HT1 opened – man reset
3F open = ref pump
shutdown delay setpoint
Dilution cycle interrupted
– switch 3F opened
Ref level switch
conflict - CHK 1F & 3F
Motor coolant float switch
is open for 0.5 sec. (units
with Franklin pumps
only)
Low motor coolant level -
MCFL switch opened
Generator shell pressure
is greater than or equal to
672mmHg (analog)
Generator Hi pressure
analog switch PT1 is
greater than 672 mmHg
High pressure (digital)
safety device open
Generator Hi Pressure
digital switch HP1 open
Auxiliary safety shutdown
contact is open
Auxiliary safety
shutdown
Remote/Local cycling
contact is open
Unit shutdown by remote
device
Multi-Unit cycling contact
is open
Unit shutdown by multi
unit remote
