28
G e o t h e r m a l H e a t P u m p S y s t e m s
P R E L I M I N A RY
Tranquility
®
30 Digital (TE) Series IOM - 60Hz HFC-410A
R e v. : 3 A u g . , 2 0 1 2 B
Electrical - Low Voltage Wiring
Low Voltage Field Wiring
Accessory Connections
A terminal paralleling the compressor contactor coil
has been provided on the DXM2 control. Terminal “A” is
designed to control accessory devices. Note: This terminal
should be used only with 24 Volt signals and not line voltage.
Terminal “A” is energized with the compressor contactor (see
Figure *).
Alarm
Relay
Comp
Relay
24Vdc
EH1
EH2
P6
Off On
JW3
A
OVR
ESD
C
R
NSB
AL2
JW1
Acc1
Relay
Acc2
Relay
H
COM1
NC1
NO1
COM2
NC2
NO2
P3
CO
RV
RV
LT1
LT1
LT2
LT2
LP
LP
HP
HP
P7
Status
Fault
R
R
CC
CCG
CO
S1
S2
1
12
1
4
e
s
U
yr
ot
c
a
F
Micro
U1
Off On
P2
COH
COM
AO2
P11
Gnd
T1
P10
T2 T2 T3 T3 T4 T4
T5
P9
T5 T6 T6
A0-1 A0-2
Off On
S3
RV
Relay
CCH
Relay
Gnd
NC
1 2 3 4
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Accessory
Relays
Accessory
Terminal
The DXM2 controller includes two accessory relays ACC1
and ACC2. Each relay includes a normally open (NO) and
a normally closed (NC) contact. Accessory relays may be
con
fi
gured to operate as shown in Tables 6 and 7.
Figure 24: Tranquility Low Voltage Field Wiring
Table 7: Accessory Relay 2 Con
fi
guration
Table 6: Accessory Relay 1 Con
fi
guration
DIP 2.1
DIP 2.2
DIP 2.3
ACC1 Relay Option
ON
ON
ON
Cycle with fan
OFF
ON
ON
N/A for Residential Applications
ON
OFF
ON
Water valve – Slow opening
ON
ON
OFF
Outside air damper
OFF
ON
OFF
ClimaDry option – Dehumidistat
OFF
OFF
OFF
ClimaDry option – Humidistat
OFF
OFF
ON
N/A for Residential Applications
ON
OFF
OFF
N/A for Residential Applications
All other DIP combinations are invalid
DIP 2.4
DIP 2.5
DIP 2.6
ACC2 Relay Option
ON
ON
ON
Cycle with compressor
OFF
ON
ON
N/A for Residential Applications
ON
OFF
ON
Water valve – Slow opening
OFF
OFF
ON
Humidi
fi
er
ON
ON
OFF
Outside air damper
All other DIP combinations are invalid
Figure *: Accessory Connections
