MORTEX E30 SERIES - 2-Stage Ht;1-Stage Cool Low Voltage Connections - 1 Tfmr.16 20 - 1-Stage Ht;Cool Low Voltage Connections - Separate Tfmrs.17 21 - Low Voltage Connections - Separate Ht;Cool Tstats - 1 Tfmr; Heat Pump Low Voltage Connections - 1 Transformer; Heat Pump Low Voltage Connections - Separate Transformers

RH
G
Y
RC
THERMOSTAT
R
G
WW
FURNACE
COOLING UNIT
OUTDOOR SECTION
24 VAC from outdoor
unit transformer
24 VAC from
Furnace Trans
24 VAC Common
from Furnace Trans
NOTE: Trans=Transformer
24 VAC from outdoor
unit transformer
24 VAC
24 VAC
CC
Y
R
C
G
W
R
HEATING
THERMOSTAT
COOLING
THERMOSTAT
FURNACE
G
W
C
R
C
Y
G
Y
R
CONDENSER
OUTDOOR SECTION
24 VAC
to Furnace Trans
Thermostat
Interlock
Switch
24 VAC Common
to Furnace Trans
Heat
Com
Cool
NOTE: Trans=Transformer
RH
G
W2
Y Y
O/B O/B
RC
THERMOSTAT
R
G
W
W/E
W2
FURNACE
CC
Y
R
W/E
HEAT PUMP
OUTDOOR SECTION
C
RH
G
W2 W2
Y Y
O
O
RC
RC
THERMOSTAT
R
G
W
W/E
FURNACE
CC
Y
W/E
HEAT PUMP
OUTDOOR SECTION
C
T
Opt.
O.D.
T-Stat
24 VAC to
Furnace Trans
24 VAC
24 VAC
24 VAC Common
to Furnace Trans
24 VAC Common
to Heat pump
Trans
24 VAC Common
to Heat pump
Trans
Add Jumper if O.D.T-Stat is not used.
NOTE: Trans=Transformer
MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 17
Figure 20: Typical Single-Stage Heat & Cool Low
Voltage Connections With Separate Transformers
in Furnace and Outdoor Unit
Figure 22: Typical Heat Pump Low Voltage
Connections With Single Transformer in Furnace
Figure 21: Typical Low Voltage Connections With
Separate Thermostats For Heating and Cooling
and Single Transformer in Furnace
Figure 23: Typical Heat Pump Low Voltage
Connections With Separate Transformers
in Furnace and Outdoor Unit