York DCPM User Manual

923180-UTG-A-1112
28 Johnson Controls Unitary Products
DESCRIPTION OF EACH CONTROL
OPERATION
Temperature & Current Parameters
• Indoor preset temperature (T
preset
)
• Indoor ambient temperature (T
amb
.)
• Evaporator coil temperature (T
evap
)
• Condenser coil temperature (T
outdoor pipe
)
• Defrost compensation temperature (T
compensation
)
• Outdoor ambient temperature (T
outdoor amb
)
• Measured temperature of outdoor condensing coil under
cooling mode and measured temperature of indoor evapo-
rator coil under heating mode (T
tube
).
• Indoor ambient temperature (T
indoor amb)
Basic Functions
Once energized, the compressor should never be restarted
within less than 3 minutes. In a situation where memory func-
tion is available when energized for the first time, if the com-
pressor is at stop before de-energized, it will re-start without a
3-minute lag. If it has been in operation before de- energized,
the compressor will start with a 3-minute lag. Once started, the
compressor will not be stopped within 6 minutes regardless of
changes in room temperature.
Cooling Mode
1. Cooling Mode Operation
• When T
amb
T
preset
, cooling mode is activated. The indoor
fan, outdoor fan and the compressor will operate simulta-
neously. The indoor fan will run at preset speed.
• When T
amb
T
preset
- 3.6,°F the compressor will stop, the
outdoor fan will stop with a time lag of 60 seconds, and the
indoor fan will run at preset speed.
• When T
preset
- 3.6°F < T
amb
. < T
preset
+ 1.8°F, the unit will
remain at its previous state.
In cooling mode, the four-way valve will be de-energized and
temperature can be set within a range from 61 to 86°F. If the
compressor stops running, the indoor fan and the swing device
will operate at original state.
2. Protection – Cooling Mode
• Antifreeze protection - In cooling and dehumidification
mode, antifreeze protection is activated 6 minutes after the
compressor has started if one of followings occur:
 T
evap
35.6 °F, the compressor will operate at reduced
frequency.
 T
evap
 30.2 °F is detected for a duration of 3 minutes,
the compressor will stop and after 60 seconds, the out-
door fan will stop. In cooling mode, the indoor fan and the
swing motor will remain at the original state.
 T
evap
.  42.8 °F and the compressor has remained in
OFF mode for at least 3 minutes, the compressor will
resume its original operation state.
• Total current up and frequency down protection if the fol-
lowings occur:
 I
total
 16A, the compressor frequency will start to
increase
 I
total
17A, the compressor frequency will not increase
 I
total
18A, the compressor will run at reduced frequency
 I
total
20A, the compressor will immediately stop and the
outdoor fan will stop after 60 seconds
36K Indoor Heat Pumps
Start cooling
Stop cooling
sorserpmoC
Original working state
Run
Stop
Outdoor fan
Indoor fan
T
preset
T
preset
+3.6
T
amb.
Preset fan speed
6 minutes
6 minutes
3 minutes
ºF

York DCPM Specifications

General

Brand	York
Model	DCPM
Category	Air Conditioner
Language	English