York SUNLINE 2000 D1EE 048 - Manual (Page 6)

10. To check that the damper blades move smoothly without
binding, carefully turn the minimum position adjusting
screw fully clockwise and then energize and de-energize
terminals “R” to “G”. With terminals “R” to “G” energized,
turn the minimum position screw counterclockwise until the
desired minimum position has been attained.
11. Replace the filter section access panel.
DISCONNECT SWITCH BRACKET
FOR UNITS WITH OPTIONAL BELT-DRIVE BLOWER
A special bracket for mounting a field-supplied disconnect
switch is provided in each unit ordered with an optional belt-
drive supply air blower. The bracket is shipped inside the
blower compartment taped to the top of the blower housing.
035-12046-003-A-0204
6 Unitary Products Group
FIG. 4 - TYPICAL FIELD WIRING
CONTROL WIRING
REFER TO THE APPROPRIATE
ELECTRICAL DATA TABLE TO
SIZE THE DISCONNECT SWITCH,
OVERCURRENT PROTECTION
AND WIRING.
POWER WIRING
R V
YC
GF
R
Y1
B
Y2
THERMOSTAT 1
TERMINALS
UNIT TERMINAL
STRIP TB1
24 VOLT
TRANSFORMER
COOLING ONLY (24 VOLT THERMOSTAT)
1 24 VOLT THERMOSTAT 2TH07701024 IF THE UNIT HAS AN ECONOMIZER,
REMOVE JUMPER J1 FROM TERMINALS 8 AND 10 ON THE RELAY BOARD
TO PREVENT SIMULTANEOUS OPERATION OF THE COMPRESSOR AND
THE ECONOMIZER. IF YOU WANT TO CONTROL THE ECONOMIZER ON A
SECOND STAGE OF COOLING, USE THE THERMOSTAT 2TH04701224.
COOLING ONLY (24 VOLT THERMOSTAT)
R C
Y
R
Y 1
Y 2
W 1 W
W 2
G
B
G
R H
T H E R M O S T A T 1
T E R M I N A L S
U N I T T E R M I N A L
S T R I P T B 1
2 4 V O L T
T R A N S F O R M E R
C O O L I N G / H E A T I N G ( 2 4 V O L T T H E R M O S T A T )
1 2 4 V O L T T H E R M O S T A T 2 T H 0 7 7 0 1 0 2 4 . I F T H E U N I T H A S A N E C O N O M I Z E R ,
R E M O V E J U M P E R J 1 F R O M T E R M I N A L S 8 A N D 1 0 O N T H E R E L A Y B O A R D
T O P R E V E N T S I M U L T A N E O U S O P E R A T I O N O F T H E C O M P R E S S O R A N D
T H E E C O N O M I Z E R . I F Y O U W A N T T O C O N T R O L T H E R E C O N O M I Z E R O N A
S E C O N D S T A G E O F C O O L I N G O R H A V E A N D E L E C T R I C H E A T A C C E S S O R Y
W I T H T W O S T A G E S O F H E A T , U S E T H E R M O S T A T 2 T H 0 4 7 1 0 2 4
A D D
J U M P E R
COOLING / HEATING (24 VOLT THERMOSTAT)
R C
R H
Y 1
Y 2
W 1
W 2
G
L E D 1
L E D 2
C O M
A 1
A 2
T
T
B
R
Y 1
Y 2
G
B
X
N
W 2
W 1
T H E R M O S T A T 1
T E R M I N A L S U N I T T E R M I N A L
S T R I P T B 1 2 4 V O L T
T R A N S F O R M E R
T O R E M O T E S E N S O R
2 T H 0 4 0 7 0 2 2 2 4 I F U S E D
N O T
U S E D
A D D
J U M P E R
A D D
J U M P E R
4
4
3
2
1 E L E C T R O N I C P R O G R A M M A B L E T H E R M O S T A T 2 E T 0 4 7 0 0 2 2 4 ( I N C L U D E S S U B B A S E )
2 S E C O N D S T A G E C O O L I N G I S N O T R E Q U I R E D O N U N I T S L E S S E C O N O M I Z E R .
3 S E C O N D S T A G E H E A T I N G I S O N L Y R E Q U I R E D O N U N I T S W I T H A T W O S T A G E
E L E C T R I C H E A T E R .
4 R E M O V E J U M B E R J 2 F R O M T E R M I N A L S 4 A N D 9 O N J U M P E R P L U G C O N N E C T O R
P 6 O N U N I T S W I T H E C O N M I Z E R . T E R M I N A L S A 1 A N D A 2 P R O V I D E A R E L A Y
O U T - P U T T O C L O S E T H E O U T D O O R E C O N O M I Z E R D A M P E R S W H E N T H E
T H E R M O S T A T S W I T C H E S T O T H E S E T - B A C K P O S I T I O N .
2
3
4
COOLING / HEATING (ELECTRONIC THERMOSTAT)
R H
R C
Y
W
G
R
Y 1
W 1
B
G
A D D
J U M P E R
T H E R M O S T A T 1
T E R M I N A L S U N I T T E R M I N A L
S T R I P T B 1
2 4 V O L T
T R A N S F O R M E R
1 E L E C T R O N I C P R O G R A M M A B L E T H E R M O S T A T 2 E T 0 7 7 0 1 0 2 4 ( I N C L U D E S S U B B A S E ) .
I F T H I S U N I T H A S A N D E C O N O M I Z E R , R E M O V E J U M P E R J 1 F R O M T E R M I N A L S 8 A N D
1 0 O N T H E R E L A Y B O A R D T O P R E V E N T S I M U L T A N E O U S O P E R A T I O N O F T H E
C O M P R E S S O R A N D T H E E C O N O M I Z E R . I F Y O U W A N T T O C O N T R O L T H E
E C O N O M I Z E R O N A S E C O N D S T A G E O F C O O L I N G , U S E T H E R M O S T A T 2 E T 0 4 7 0 0 2 2 4 .
C O O L I N G / H E A T I N G ( E L E C T R O N I C T H E R M O S T A T )
S I N G L E S T A G E
COOLING / HEATING (ELECTRONIC THERMOSTAT)