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30. Controller Signal References
30.1. M3 Unit Controller
Table 66. P259 Blower ECM Motor
Pin # Label Description Type
1
ODF /
PWM 1
OUTDOOR FAN PWM1 PWM
2
ODF /
PWM 2
OUTDOOR FAN PWM2 PWM
3 GND DIGITIAL GROUND GND
4
IDB / PWM
/ VO
ENERGENCE STANDARD EFFICIENCY 3 TO 6-TON UNIT INDOOR BLOWER
PWM
PWM
* MSAV / VAV: VFD VOLT OUT 0-10 VAC OUT
* ALL ENERGENCE ULTRA-HIGH EFFICIENCY UNITS EBM: VOLT OUT 0-10 VAC OUT
* ZONE: DAMPER ACUATOR (CAV) 0-10 VAC
5
MSAV
RELAY
*
ENERGENCE STANDARD EFFICIENCY 3 TO 6-TON UNIT: 2
ND
STAGE
COMPRESSOR 1
24VAC DO
* MSAV / VAV: EXHAUST 2
ND
BYPASS 24VAC DO
6 GND DIGITAL GROUND GND
7 IDB ENERGENCE STANDARD EFFICIENCY 3 TO 6-TON UNIT: IDB FEEDBACK 5VDC
*
MSAV / VAV / ENERGENCE ULTRA-HIGH EFFICIENCY 7-1/2 TO 20-TON UNITS
ALARM CONTACT (MUST BE WIRED TO GND)
5VDC
8 V BIAS V-BIAS 18VDC
Table 67. P262 Economizer Control
Pin # Label Description Type
1 T1 24VAC POWER 24VAC
2 GND DIGITAL GROUND 24VAC COM
3 VOT DAMPER CONTROL 2-10VDC DO
4 DPOS DAMPER POSITION FEEDBACK 2-10VDC DI
5 GND DIGITAL GROUND
RES 0-5VDC
6 RT16 + RETURN AIR TEMP
7 A7 S OUTDOOR ENTHALPY SENSOR 4-20 mA AI
8 18VDC 18VDC POWER 18VDC
9 A62 S INDOOR ENTHALPY SENSOR 4-20 mA AI
10 A173 SMOKE DETECTOR 24VAC DI
11 T1 SMOKE DETECTOR 24VAC
24VAC POWER
12 COM SMOKE DETECTOR 24VAC COMMON
Table 68. P263 High and Low Pressure
Pin # Label Description Type
1 UTS2 ULTRA SUMP TEMP COMPRESSOR 2
RES 0-5VDC
2 GND GROUND
3 S4 HIGH PRESSURE COMPRESSOR 1 SW 24VAC
4 T1 24VAC POWER 24VAC
5 S87 LOW PRESSURE COMPRESSOR 1 NC SW 24VAC
6 S7 HIGH PRESSURE COMPRESSOR 2 SW 24VAC
7 T1 24VAC POWER 24VAC
8 S88 LOW PRESSURE COMPRESSOR 2 SW 24VAC
Table 69. P264 Blower Deck Area
Pin # Label Description Type
1 RT6 DISCHARGE AIR TEMP
RES 0-5VDC
2 GND DIGITAL GROUND
3 S49 FREEZESTAT 1 (NC) SW 5VDC
4 VSS 5VDC 5VDC
5 S50 FREEZESTAT 2 (NC) SW 5VDC
6 S52 AIR FLOW SWITCH (NO) SW 5VDC
7 VSS 5VDC 5VDC
8 S27 DIRTY FILTER SWITCH (NO) SW 5VDC
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