Heat Controller HTS SERIES manual a: DXM2 Layout and Connections, P11P10, P9 CC

T h e Q u a l i t y L e a d e r i n C o n d i t i o n i n g A i r

R e s i d e n t i a l S p l i t - 6 0 H z R 4 1 0 A

R e v. : 0 3 A u g u s t , 2 0 1 2

Figure 26a: DXM2 Layout and Connections

Service tool	Communicating	Test Button to
connection	stat connection	Speed up Time Delays

Conventional

stat connection

P1

Y1

Y2

W

O

G

R

C

AL1

P2

C

R

Gnd B- A+ 24V

P5

P4

(240Vac) (240Vac)

	N.O	N.C.
		N.O.
Com
Fan		Fan Speed

Test P12

P8

12V

IN

OUT

Gnd

NC

ECM Motor Connection

Cabinet

temperature

sensor

AL2
R
NSB	Alarm
C	Relay

JW1

Micro	1
U1

Water Coil

Low Temp

Limit Setting

(with variable speed pump)

ESD

OVR

Fault Status

LP

LP

LT1

Communications

and HWG

Settings

H
A
P3
R
NO1
NC1
COM1	F
NO2	act
NC2	ory

Acc1 Relay

Off On

1 2 3 4

S3 Off On

1 2 3 4 5 6 7 8

S1

Off On

1 2 3 4 5 6 7 8

S2

A0-1 A0-2

JW3

CCH

Relay

LT1

LT2

LT2

RV

RV

CO

12 CO

RV P7 Relay

1 24Vdc

EH1

4 EH2

Comp P6

Factory low

voltage molex connection for unit harness

Factory low

voltage molex connection for electric heat harness

COM2	Us
	e
R

COH

COM

Acc2 Relay

P11P10

AO2 Gnd T1 T2 T2 T3 T3 T4 T4

P9 CC

T5 T5 T6 T6

Configure modulating valve or variable speed pump

24V to compressor second-stage solenoid for Y2/full

load capacity

Variable speed pump Entering water temp Leaving water temp Leaving air temp Entering Hot water Temperature Compressor Discharge temperature

Use 4 mounting screws #6 sheet metal screw 1” long

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