User Guide

THERMOSTAT WIRING CONTINUED
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX [phone] E-Mail- [e-mail]
5
Figure 5
Figure 4
Wiring a split circuit thermostat to operate a
Radiant floor heating or Baseboard heating
Hydronic system. The BMPlus 3000 controls the
cooling only in this type of configuration.
WIRING FOR RADIANT FLOOR HEAT
To Radiant floor / Baseboard heat
zone valve or pump relay
Figure 3
ZONE2
T’STAT
Y
R
G
O/B
W/E
C
ZONE1
T’STAT
Y
ONE
ZONE
R
G
O/B
W/E
C
W
RH
GRC
Y
ZONE2
T’STAT
Y
R
G
O/B
W/E
C
C
O
B
E
L
W1
W2
Y1
R
G
WIRELESS THERMOSTAT: RECIEVER MODULE
MODEL EWT-3900
C
O
B
E
L
W1
W2
Y1
R
G
WIRELESS THERMOSTAT: RECIEVER MODULE
MODEL EWT-3900
Figure 6
Wiring for a Radiant floor loop as the first
stage of heat via the isolation relay and 2nd
stage Forced Air heat is controlled through the
zone panel.
ZONE2
T’STAT
Y
R
G
O/B
W/E
C
G
W1
RH
RCY
W2
C
To Radiant floor / Baseboard heat
zone valve or pump relay
SPST 24vac
Isolation Relay
Model EWT-3900: Wireless Thermostat.
Configured for 1 heat 1 cool (SS1 mode).
Can be configured for heat pump. See
thermostat instructions for further details.
Model EWT-3900: Wireless Thermostat.
Configured for 2 heat 1 cool heat pump
(HP1 mode.)See thermostat instructions for
further details.
HEAT/COOL
THERMOSTAT
MULTISTAGE HEAT/COOL
THERMOSTAT
*
Thermostat should be battery powered.
*