EWC Controls BMPlus 3000 Technical Bulletin page 5

THERMOSTAT WIRING CONTINUED
WIRING FOR RADIANT FLOOR HEAT
ZONE2
C
T'STAT
C
W/E
O/B
Y
R
G
Figure 3
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.
WIRING FOR RADIANT FLOOR HEAT
ZONE2
T'STAT
C
W/E
O/B
Y
R
G
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.
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362
ZONE THERMOSTAT
68
HEAT
W2 Y RC RH G W1
SPST 24vac
Isolation Relay
To Radiant floor / Baseboard heat
zone valve or pump relay
ZONE THERMOSTAT
68
HEAT
C Y RC G RH W
To Radiant floor / Baseboard heat
zone valve or pump relay
WIRING FOR "ONE ZONE" MODE
ZONE1
T'STAT
C
W/E
O/B
Y
R
G
ONE
ZONE
Figure 5 Wiring for manual activation of "One Zone"
mode using a standard heat/cool thermostat in
Zone1. An Optional, Illuminated One Zone
Mode Switch, Part# "VAC" is required.
WIRING FOR "ONE ZONE" MODE
COMMERCIAL GRADE
HEAT PUMP THERMOSTAT
HEAT
ZONE1
C W/E
T'STAT
C
W/E
O/B
Y
R
G
ONE
ZONE
Figure 6
Wiring for automatic activation of "One Zone" mode using a
commercial grade thermostat in Zone 1. Program or wire the
thermostat to Energize (close contact) the One Zone Terminal
and setback the temperature when the building is
Unoccupied....When the building is Occupied, the thermostat
will de-energize (open contact) the One Zone Terminal.
E-Mail- info@ewccontrols.com
ZONE THERMOSTAT
68
HEAT
W Y R G
Optional
ONE ZONE
SWITCH
68
O Y R G UNOCC/OCC
LED
5