Bryant 547J, Руководство по установке

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9
Fig. 23 — Typical EconoMi$er X Wiring Diagram for 1 or 2 Speed Units (Not for 48/50LC 07-12 Units)
Instructions for 48/50LC 07-12 Units Only
1. Follow steps 1 through 10 in the previous section.
2. The 48/50LC 07-12 units require different wiring than is
factory-attached to the W7220 controller. Disconnect the
complete wiring harness factory-attached to the W7220 con -
troller, as shown below in Fig. 24. This harness can be dis -
carded.
NOTE: The 4-wire 48TMHSRSE--A20 harness provided with the
economizer will also NOT be used on the 48/50LC07-12 units;
see Fig. 25.
3. The 48/50LC 07-12 units that do not have a factory-installed
economizer will have a new W7220 controller wiring harness
shipped in the control box section of the HVAC unit. This
harness, Carrier part number 48LCHSRADH--A00, is shown
in Fig. 27 and 26.
4. The connectors on the right side of Fig. 27 on the
48LCHSRADH--A00 harness attach to the W7220 controller
installed in the unit control box. (See Fig. 26 and 28.)
48LCHSRADH--A00 harness connectors are labeled to
easily identify the plug-in location on the controller.
5. Locate the Compressor Staging Control (CSC) board in the
HVAC unit. When a field-installed economizer is used the J5
jumper on the CSC must be removed. Remove the J5 jumper.
(See Fig. 28.)
6. The connectors on the left side of Fig. 26 on the
48LCHSRADH--A00 harness attach to the unit’s CSC board.
Connect J3 and J5 plugs to the CSC board.
7. Screw the green wire with yellow stripe in the
48LCHSRADH--A00 harness to the control box (ground).
(See Fig. 12 and 28.)
8. Mount the provided HH79AH001 mixed air temperature
(MAT) sensor (C7250) to the indoor blower. Confirm that the
screws do not interfere with blower rotation. (See Fig. 15.)
Locate the 50HE403859 2-green wire harness shipped with
the EconoMi$er X kit. It will have a plug on one end and
terminals on the other end. Connect the plug from this harness
to the MAT sensor. (See Fig. 15.) Connect the (2) spade
terminals on the 50HE403859 harness to orange and brown
wires in the indoor blower section wire bundle.
9. Follow steps 21 through 25 earlier in these instructions.
Mixed Air Sensor
Field Mount on
Indoor Blower
1
HH79AH001
HONEYWELL C7250
Dry Bulb
Outside Air
Sensor
12-Pin Female
Plug from Economizer
Economizer
Harness
In Unit
50HE403859
Harness
GRN
GRN
WHT
BLK
GRN
BLU
BLK
GRA
GRA
GRA
GRA
PNK
PNK
BLU
BLK
PNK
GRA
GRA
GRA
RED
PNK
ORG
BRN
YEL
VIO VIO VIO
ORG
ORG
BRN
BRN GRN
GRN
6
7
2
3
10
11
5
1
12
9
4
8
RED
ORG
1
2
3
4
RED
Economizer
Actuator
1
2
3
4
HH57AC081
1
2
1
Enthalpy Outside
Air Sensor
To Optional
Power Exhaust
PL6
Plug
12-Pin Male
Plug in Unit
48TMHSRSE--A20
Harness with
4-Pin Female Plug
4-Pin Male
Plug
10-Pin Male
Plug
PNK
BLU
BLK
GRA
GRA
RED
“R” ON CTB
ORG
BRN
YEL
“C” ON CTB
BLU
BLK
GRN / YEL
WHT
BLU
GRA
ORG
YEL
BLK
BRN
RED
VIO
1
1
2
2
3
3
4
10
6
4
5
9
1
3
8
2
7
1
2
3
4
5
6
7
8
9
10
4
9
3
8
10
2
6
7
5
1
4
10-Pin Female
Plug Disconnected
from CTB
CO2
(Optional)
Ground
“W1” on CTB
W7220 Controller,
Field Mounted in
Unit Control Box
MAT
MAT
OAT
OAT
ACT 24V
ACT COM
S-BUS
S-BUS
EXH1
IAQ COM
ACT 2-10
AUX1 OUT
IAQ 2-10
E-GRD
AUX2 IN
Y1 IN
Y1 OUT
Y2 OUT
Y2 IN
OCC
C
R
10-Pin Female
Plug Connects to
ECON on
Central Terminal
Board
BRN
YEL
Either the OAT or the Enthalpy
Sensor can be used but not both.
Remove OAT if Enthalpy’s used.
Refer to Figures 33 and 34 for Remote
Fault Detection and Diagnostic Monitoring.
LEGEND
3
Refer to Figure 31 for wiring optional
Differential Return Air Sensor kit.
ECONOMIZER RETURN CHAMBER INDOOR BLOWER SECTION
UNIT CONTROL BOX COMPARTMENT
DA RA OA
12
3
S-Bus
Temp & Humidity
HH57AC081
S-Bus
CTB: Central Terminal Board
MAT: Mixed Air Temperature Sensor
OAT: Outside Air Temperature Sensor
HH79AH001
HONEYWELL C7250
IMPORTANT: This section is for economizer installation
instructions on 48/50LC 07-12 units only.