Bryant 580J*04A, Руководство по установке

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23
Inputs
Sensors
NOTE: A Mixed Air (MA) analog sensor is required on all
W7220 units; either an Outdoor Air (OA) sensor for dry bulb
change over or an OA bus sensor for outdoor enthalpy change
over is required in addition to the MA sensor. An additional
Return Air (RA) bus sensor can be added to the system for dif-
ferential enthalpy or dry bulb changeover. For differential dry
bulb changeover a 20k ohm sensor is required in the OA and a
bus sensor in the RA. DIP switch on RA bus sensor must be
set in the RA position.
Dry Bulb Temperature (optional) and Mixed Air (required),
20k NTC
2-wire (18 to 22 AWG);
Temperature range -40 to 150°F (-40 to 65°C)
Temperature accuracy -0°F/+2°F
Temperature and Humidity, C7400S1000 (optional)
S-Bus; 2-wire (18 to 22 AWG)
Temperature: range -40 to 150°F (-40 to 65°C)
Temperature accuracy -0°F/+2°F
Humidity: range 0 to 100% RH with 5% accuracy.
NOTE: Up to three (3) S-Bus sensors may be connected to the
W7220 economizer module. For outdoor air (OA), return air
(RA) and discharge (supply) air (DA).
4 Binary Inputs
1-wire 24 Vac + common GND (see page 24 for wiring
details).
24 Vac Power Supply
20 to 30 Vac 50/60Hz;
100 VA Class 2 transformer.
Outputs
Actuator Signal
2-10 Vdc; minimum actuator impedance is 2k ohm; bus
two-wire output for bus communicating actuators.
Exhaust fan, Y1, Y2 and AUX1
All Relay Outputs (at 30 Vac):
Running: 1.5A maximum
Inrush: 7.5A maximum
Environmental
Operating Temperature
-40 to 150°F (-40 to 65°C).
Exception of display operation down to -4°F with full
recovery at -4°F from exposure to -40°F
Storage Temperature
-40 to 150°F (-40 to 65°C)
Shipping Temperature
-40 to 150°F (- 40 to 65°C)
Humidity
5% to 95% RH non-condensing
ECONOMIZER MODULE WIRING DETAILS —
Use Fig. 37 and Tables 9 and 10 to locate the wiring terminals
for the Economizer module.
NOTE: The four terminal blocks are removable. Slide out each
terminal block, wire it, and then slide it back into place.
Fig. 37 — W7220 Wiring Terminals
S-Bus Sensor Wiring — The labels on the sensors and con-
troller are color coded for ease of installation. Orange labeled
sensors can only be wired to orange terminals on the controller.
Brown labeled sensors can only be wired to S-bus (brown) ter-
minals. Use Fig. 37 and Table 9 to locate the wiring terminals
for each S-Bus sensor.
Use Fig. 37 and Table 10 to set the DIP switches for the de-
sired use of the sensor.
Table 9 — Economizer Module - Left Hand Terminal
Blocks
LABEL TYPE DESCRIPTION
Top Left Terminal Block
MAT
MAT 20k NTC
and COM Mixed Air Temperature Sensor (Polarity
Insensitive Connection)
OAT
OAT 20k NTC
and COM Outdoor Air Temperature Sensor
(Polarity Insensitive Connection)
S-BUS
S-BUS S-BUS
(Sylk* Bus) Enthalpy Control Sensor
(Polarity Insensitive Connection)
Bottom Left Terminal Block
IAQ 2-10 2-10 vdc
Air Quality Sensor Input (e.g. CO
2
sensor)
IAQ COM COM Air Quality Sensor Common
IAQ 24V 24 vac Air Quality Sensor 24 vac Source
ACT 2-10 2-10 vdc Damper Actuator Output (2-10 vdc)
ACT COM COM Damper Actuator Output Common
ACT 24v 24 vac Damper Actuator 24 vac Source
NA
AUX2-
OCC
E-GND
EXH1
AUX1-O
Y2-
Y1-
Y2-O
Y1-O
C
R
5004 88 4 8 -002
Rev. A
NA
A2
OCC
EX
A1
Y2I
Y2O
Y1I
Y1O
C
R
Cert Prod u ct
C a liforni a Title 24, P a rt 6
HJW10
www.energy.c a .gov
MAT
MAT
OAT
OAT
S -BU S
S -BU S
IAQ 2-10
IAQ COM
IAQ 24V
ACT 2-10
ACT COM
ACT 24V
MA
MA
OA
OA
S B
S B
S B
S B
S B
S B
V
C
R
V
C
R
NA
50040 83 9-001
Rev. G
* Sylk is a trademark of Honeywell International Inc.