Daikin RDT Installation And Maintenance Manual

InTroduCTIon
www.DaikinApplied.com 15 IM 893-10 • ROOFPAK SINGLEZONE UNITS
Controls, Settings and Functions
Table 2: Controls, Settings, and Functions
Symbol Description Function Reset Location Setting Range Differential Part No.
CS1 & 2
Switch (toggle),
refrigerant circuit
Shuts off compressor
control circuits manually
N/A Main control panel N/A N/A N/A 01355000
CDS 2 Discharge Thermostat Refrigerant temperature N/A Compressor N/A N/A N/A 910150290
DAT
Discharge air
temperature sensor
Senses discharge air
temperature
N/A
Discharge air
section
N/A N/A N/A 060004705
DHL Duct high limit switch
Prevents excessive VAV
duct pressures; shuts fan
OFF
Auto Main control panel
3.5ʺ w.c
(871.8 Pa)
0.05–5.0ʺ w.c.
(12.5–1245.4 Pa)
0.05ʺ w.c.
(12.5 Pa), xed
065493801
EFT
Entering fan air
temperature sensor
Senses entering fan air
temperature
N/A Inlet of supply fan N/A N/A N/A 060004705
FP1, 2 Frost protection
Senses DX coil temperature
for frost protection
Auto DX coil
30° +/-6° open 45°
+/- 6° close
N/A 15° 113073401
FS1 Freezestat
Shuts fans OFF, opens
heating valve, and closes
outdoor damper if low
air temperature at coil is
detected
Auto Heating section
38°F (3°C)
or as required
35°F–45°F
(2°C–7°C)
12°F
(7°C), xed
065830001
HP1, 2 High pressure control
Stops compressor when
refrigerant discharge
pressure is too high
Manual
(relay
latched)
Condenser panel See page 115 N/A 150 psi 403585001
LP1, 2 Low pressure control
Stops compressor when
suction pressure is too low
Auto Condenser panel See page 115 N/A
50 psi low ambient
option/
70 psi standard
910139364
MCB Main control board Processes input information N/A Main control box N/A N/A N/A 060006101
MF3, 4 Cooling fan Ventilate VFD box N/A VFD box N/A N/A N/A 910147046
MP1–6
Compressor motor
protector
Senses motor winding
temperature, shuts
compressor OFF on high
temperature
Auto at 3400
ohms
Compressor
junction box
9 K–18 K ohms 700 ohms cold N/A 044691509
OAE
Enthalpy control
(electromechanical)
Returns outside air dampers
to minimum position when
enthalpy is too high
Auto
Economizer
section
“B” or as required A–D
Temperature: 3.5°F
(2°C) Humidity: 5%
xed
030706702
Enthalpy control
(electronic)
Returns outside air dampers
to minimum position when
outside air enthalpy is
higher than return air
enthalpy (use RAE)
Auto
Economizer section
Fully CW past “D”
(when used with
RAE)
A–D N/A N/A 049262201
OAT
Outside air
temperature sensor
Senses outside air
temperature
N/A N/A N/A N/A N/A 060004705
OOS Optical Oil Sensor Sense oil level N/A Compressor sump N/A N/A N/A 910150291
PC5 Dirty lter switch Senses lter pressure drop Auto First lter section As required
0.05-5ʺ w.c.
(12.5–1245.4 Pa)
0.05ʺ w.c.
(12.5 Pa)
065493801
PC6 Dirty lter switch Senses lter pressure drop Auto Final lter section As required
0.05-5ʺ w.c.
(12.5–1245.4 Pa)
0.05ʺ w.c.
(12.5 Pa)
065493801
PC7 Airow proving switch
Senses supply fan pressure
to prove airow
Auto Supply fan section
0.10ʺ w.c.
(25 Pa)
0.05-5ʺ w.c.
(12.5–1245.4 Pa)
0.05ʺ w.c.
(12.5 Pa), xed
060015801
PT1, 2 Pressure transducer Sense high side pressure N/A Condenser panel N/A 0–700 psig N/A 910153045
RAE
Return air enthalpy
sensor
Used to compare return
air enthalpy to outside air
enthalpy (used with OAE)
N/A Economizer section N/A N/A N/A 049262202
RAT
Return air temperature
sensor
Senses return air
temperature
N/A Return air section N/A N/A N/A 060004705
SD1
Smoke detector,
supply air
Initiates unit shutdown if
smoke is detected
Manual
Discharge air
section
N/A N/A N/A 04925001
SD2
Smoke detector,
return air
Initiates unit shutdown if
smoke is detected
Manual Return air section N/A N/A N/A 04925001
SPS1
Static pressure sensor
duct #1
Converts static pressure
signals to voltage signals
N/A Main control box N/A
0–5ʺ w.c. (0–1245.4
Pa) 1–6 V (dc) out
N/A 049545007
SPS2
Static pressure sensor
duct #2
Converts static pressure
signals to voltage signals
N/A Main control bo N/A
0–5ʺ w.c. (0–1245.4
Pa) 1–6 V (dc) out
N/A 049545007
Static pressure sensor:
building (space)
pressure
Converts static pressure
signals to voltage signals
N/A Main control box N/A
-025–0.25ʺ w.c.
(-62.3–62.3 Pa)
1–5 V (dc) out
N/A 049545006
S1 System switch
Shuts off entire control
circuit (except crankcase
heaters)
N/A Main control box N/A N/A N/A 001355000
S7 ON-OFF-AUTO switch Used to manually switch unit N/A Main control box N/A N/A N/A —
SV1-2 Drop solenoid
Shuts liquid line when
compressor is OFF
N/A
Discharge air
section
N/A N/A N/A 049266502
SV9, 10 Splitter solenoid valve Control refrigerant ow N/A Condenser Normally open
Open at 350 psig
Close at 250 psig
N/A —
SV11 OIV injection solenoid Direct oil in compressor N/A Compressor Normally closed N/A
Activated above
50 rps
910150289

Daikin RDT Specifications

General

Brand	Daikin
Model	RDT
Category	Air Conditioner
Language	English