Daikin MicroTech MT2300 - Control Outputs; LED Indicators

9
OM 1364-1
WWW.DAIKINAPPLIED.COM
fUNCTIONALITy
Control Outputs
• The thermostat alarm output: Will be energized when
there are fault conditions presently active. Without any fault
conditions active, the alarm output shall be de-energized.
When energized the onboard relay closes the connection
between TB4 ALM and COM. For a 24VAC output from
ALM, connect a 24VAC source to COM.
• Isolation Valve / Pump Request [IV/PR (H6)]: is selectable
to be energized when the compressor is o󰀨 (normally
closed), or when the compressor is on (normally open), by
moving the wire lead to the appropriate terminal.
Figure 4: TB4, H5, and H6 Terminals on MT2300 Board
R
R
H7
H7
H8
H8
H1
H1
LED
LED
FM
FM
SP
SP
RM
RM
GND
GND
LED
LED
FM
FM
SP
SP
RM
RM
GND
GND
TB3
TB3
TB2
TB2
TB1
TB1
E
E
E
E
U
U
U
U
W2
W2
W1
W1
Y2
Y2
Y1
Y1
G
G
C
C
R
R
W2
W2
W1
W1
Y2
Y2
Y1
Y1
G
G
C
C
MT2300
MT2300
PART# 910384405
PART# 910384405
H3
H3
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
H4
H4
RY/FAN_HIGH
RY/FAN_HIGH
RY/FAN_EN
RY/FAN_EN
RY/PUMP
RY/PUMP
Figure 5: Compressor Relay Terminals on MT2300 Board
RR
H7
H7
H8
H8
H1
H1
LEDLED FMFM SPSP RMRM GNDGND
LED
LED
FM
FM
SP
SP
RM
RM
GND
GND
TB3
TB3
TB2
TB2
TB1
TB1
E
E
E
E
U
U
U
U
W2W2 W1W1 Y2Y2 Y1Y1 GG CC
R
R
W2
W2
W1
W1
Y2
Y2
Y1
Y1
G
G
C
C
MT2300
MT2300
PART# 910384405
PART# 910384405
H3
H3
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
H4
H4
RY/FAN_HIGH
RY/FAN_HIGH
RY/FAN_EN
RY/FAN_EN
RY/PUMP
RY/PUMP
• Compressor Relay: Line or low voltage output used to
control compressor. (On/O󰀨)
LED Indicators
When the unit controller or I/O boards are communicating a
certain fault or mode, the LED indicator will ash a designated
pattern or sequence. See below for the location of the LED
indicator on each board.
Figure 6: LED Indicator on MT2300 Board
R
R
H7
H7
H8
H8
H1
H1
LED
LED
FM
FM
SP
SP
RM
RM
GND
GND
LED
LED
FM
FM
SP
SP
RM
RM
GND
GND
TB3
TB3
TB2
TB2
TB1
TB1
E
E
E
E
U
U
U
U
W2
W2
W1
W1
Y2
Y2
Y1
Y1
G
G
C
C
R
R
W2
W2
W1
W1
Y2
Y2
Y1
Y1
G
G
C
C
MT2300
MT2300
PART# 910384405
PART# 910384405
H3
H3
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
H4
H4
RY/FAN_HIGH
RY/FAN_HIGH
RY/FAN_EN
RY/FAN_EN
RY/PUMP
RY/PUMP
Figure 7: LED Indicator on MT2310 I/O expansion board
TB1
TB1
H5
H5
H6
H6
H4
H4
PWM
PWM
WSE
WSE
GND
GND
HGR
HGR
GND
GND
AUX1
AUX1
GND
GND
AUX2
AUX2
GND
GND
RV2
RV2
GND
GND
COMP2
COMP2
GND
GND