York YLUA0078 User Manual

JOHNSON CONTROLS
40
FORM 150.73-NM1
ISSUE DATE: 09/04/2020
SECTION 4 – INSTALLATION
FIGURE 8 - SINGLE-POINT SUPPLY CONNECTION – TERMINAL BLOCK, NON-FUSED DISCONNECT
SWITCH OR CIRCUIT BREAKER
Electrical Notes and Legend located on page 58.
LD07719
Power PanelControl Panel
Terminal Block,
NF Disconnect SW
or Circuit Breaker
1L11L2 1L3
GRD
MICROPANEL
2
L
CTB2
13 14
CTB1
Field Provided Unit Power Supply
Field Provided 120- 1-60
Micropanel Power Supply if Control
Transformer not Supplied
Flow Switch
See electrical note 9
Power PanelControl PanelPower PanelControl Panel
Terminal Block,
NF Disconnect SW
or Circuit Breaker
1L11L2 1L31L11L2 1L3
GRDGRDGRD
MICROPANEL
2
L
CTB2
2
L
CTB2
13 1413 14
CTB1
Field Provided Unit Power Supply
Field Provided 120- 1-60
Micropanel Power Supply if Control
Transformer not Supplied
Flow Switch
See electrical note 9
It is possible that multiple sources of
power can be supplying the unit power
panel. To prevent serious injury or death,
the technician should verify that NO
LETHAL VOLTAGES are present inside
the panel AFTER disconnecting power,
before working on equipment.
The unit evaporator heater uses 120 VAC.
Disconnecting 120 VAC power from the
unit, at or below freezing temperatures,
can result in damage to the evaporator
and unit as a result of the chilled liquid
freezing.
LD13345
FIGURE 9 - DISCHARGE AIR SENSOR FIELD WIRING
9
8
7
6
5
4
3
2
1
7
4
1
RED (SIGNAL)
BLK (+5VDC)
DRAIN (GND)
J6 PIN IDENTIFICATION
ON I/O
REFER TO ASSEMBLY INSTRUCTIONS IN
FACTORY SUPPLIED KIT FOR DISCHARGE
AIR SENSOR AND ELECTRICAL CONNECTION
HARDWARE SHIPPED WITH UNIT.
DISCHARGE AIR
SENSOR WITH
MOUNTING BRACKET
RED
BLK
FIELD SUPPLIED WIRING
QUABBIN 930421-2
OR EQUIVALENT
J6-5 and J6-8
J6-2 SHIELD

York YLUA0078 Specifications

General

Brand	York
Model	YLUA0078
Category	Heat Pump
Language	English