EWC Controls Ultra-Zone UZC4 User Manual

EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362 E-Mail- info@ewccontrols.com
11
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.
WIRING FOR “ONE ZONE” MODE
Figure 11.
ZONE THERMOSTAT
#1
Commercial Grade
Thermostat
G
RY
W2W1
C
UNOCC / OCC
C
W2
Y1
R
G
O/B
ONE
ZONE
ZONE 1
T'STAT
W1/E
Y2
AUX R
CO2
CO2
Figure 12.
HEAT PUMP MODE WITH DE-HUMIDIFICATION
C
W2
Y1
R
G
O/B
ONE
ZONE
ZONE 1
T'STAT
W1/E
Y2
AUX R
CO2
CO2
Wiring for typical 3 stage Heat,2 stage cool Heat
Pump. Diagram reflects De-humidification
terminal wired to the Auxilary input. For auxilary
output wiring see page 14. Auxilary Relay Dip
Switch #5, Bank #2, should be set to Reverse
Acting. (RA)
Refer to Dehumidify
Operations on page 14.
Wiring a split circuit thermostat to operate a
Radiant floor heating or Baseboard heating
Hydronic system. The UZC4 controls the cooling
only, in this type of configuration.
To Radiant floor / Baseboard heat
zone valve or pump relay
WIRING FOR RADIANT FLOOR HEAT
ANY ZONE
T’STAT
C
W2
Y2
R
G
W1/E
Y1
O/B
Figure 13.
ANY ZONE
T’STAT
C
W2
Y2
R
G
W1/E
Y1
O/B
MODEL IZT-250
CB
Y2
W1 W2
Y1
RH
G
Model IZT-250 Internet Thermostat:
Configured for 2 heat 2 cool. See thermostat
instructions for further details.
Figure 10.
O
RC
MODEL EWT-601-2
RH
C
O
Y1
RC
G
W/E B
W/E
W2
Y1
RC
RH
D
H
C
G
O
Y2
MODEL EWT-955WH
B

EWC Controls Ultra-Zone UZC4 Specifications

General

Brand	EWC Controls
Model	Ultra-Zone UZC4
Category	Controller
Language	English