Fig. 7 - Field Control Wiring - York eco2 050 Installation Operation & Maintenance

Installation
PA PA JA JA
2 1
PB PB JB JB
PC PC JC JC 1T 1T
2T 2T
(100VA) (100VA)
(75VA) (75VA)
200 200
2COM 2COM
COM COM
G/Y G/Y
100 100
G/Y G/Y
TB1 TB1
G/Y G/Y
100 100
24VAC 24VAC
COM COM
24VAC-COM 24VAC-COM
144 144
145 145
146 146
MOD-DCU BOARD MOD-DCU BOARD
143 143
(YK-025-36103-000) (YK-025-36103-000)
142 142
141 141
G
OCC OCC
SD SD
SMK SMK
BI11 BI11
BIR BIR MOD-UNT KIT MOD-UNT KIT
BI12 BI12 YK-325-36143-001 YK-325-36143-001
BI13 BI13
BIR BIR
BI14 BI14
120 120
110 110
BYP BYP
24VAC-COM 24VAC-COM
AO AO
MOD-UNT MOD-UNT
C
(YK-025-36105-000) (YK-025-36105-000)
G
OC OC
TSI BOARD TSI BOARD XD XD
P
(YK-025-36102-000) (YK-025-36102-000)
R
X
CTB1 CTB1 CTB2 CTB2
LOCATION OF CTB1
Note, 24VAC switch voltage must be
sourced from the unit. Use of another
power source external of the unit may
cause equipment damage.
Unoccupied Input
Shutdown Input
Smoke Purge Input
VAV Heat
Relay Output
FIG. 7 – FIELD CONTROL WIRING
28
CTB1 FIELD CONTROL WIRING
GRD GRD
Wiring Notes:
KEYPAD/DISPLAY PANEL KEYPAD/DISPLAY PANEL
(LANGUAGE KIT) (LANGUAGE KIT)
DWG. 202989 DWG. 202989
STOP/RUN STOP/RUN
SWITCH SWITCH
DISPLAY & DISPLAY &
KEYPAD MOD-UI KEYPAD MOD-UI
1. Wiring shown indicates typical wiring.
2. All wiring is Class 2, low voltage.
RJ11-6 RJ11-6
TB2 TB2 3. Maximum power available from the 24 VAC
SHLD SHLD
BLK BLK
N2G N2G
WHT WHT
N2N N2N
RED RED
N2P N2P
TO SA-FAN VFD TO SA-FAN VFD
SELECTOR SWITCH SELECTOR SWITCH
DWG. 202990 DWG. 202990
JE JE
4. Use shielded wire where shown.
24VAC 24VAC
7 Wire Thermostat
COMMON
R (24VAC)
Y1 (Cool Stage 1)
Y2 (Cool Stage 2)
W1 (Heat Stage 1)
W2 (Heat Stage 2)
G (Fan)
Space Sensor
1K Nickel Signal
Common
RTD Sensor
1.5K Adjust Signal
Common
Potentiometer
2
CO Sensor
Signal
0-5V Output
Common
Occupied /
24 VAC Signal
Common
Note: VAV Heat Relay
output shall be used to
command the VAV boxes
to open full.
terminal is 40 VA.
CTB1
1 2
* Use Shielded Wire
* Use Shielded Wire
* Use Shielded Wire
Closed = Occupied
Open = Unoccupied
Closed = Shutdown
Open = Normal
Closed = Smoke Purge
Open = Normal
FORM 100.50-NOM1 (604)
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
LD07414
YORK INTERNATIONAL
19 20 21