York YSWU 10, Quick Start Up Manual, Page: 9 / 28

Shielded wire must be used for sensor
wiring and the shield should be termi-
nated on one end only to the unit ground-
ing block.
ZONE SENSOR CONTROL - COOLING
Field Wiring
Connect zone sensor wiring to terminals 13 and 14 of
terminal block CTB1 located inside the control panel
(see Appendix 1) .
Miscellaneous Connections
No additional connections required.
Programming
Options Key – Unit Data Subsection
• UNIT TYPE = CONSTANT VOLUME.
• UNIT SIZE = Select Unit Size in tons from the
listed choices.
• REFRIGERANT TYPE = Select R22, 407C, or
R410A.
• COMP STAGING SEQ = For units with four
stages of cooling select SIMPLE, for units with
six stages of cooling select MIXED (on four com-
pressor units only).
Setpoints Key – Cooling Subsection
• 1st STAGE COOLING SETPOINT = 55.0 –
60.0
0
F.
• 2nd STAGE COOLING SETPOINT = 50.0 –
60.0
0
F.
• OCC ZONE COOLING SETPOINT = 60.0 –
85.0
0
F.
• UNOCC ZONE COOLING SETPOINT = 60.0 –
95
0
F.
Program Key – Unit Data Subsection
• CONTROL METHOD = WIRED ZONE TEMP.
Date / Time Key
Enter Correct Date and Time.
SECTION 3 - CONSTANT VOLUME UNITS
ZONE SENSOR CONTROL – HEATING
Field Wiring
Connect zone sensor wiring to terminals 13 and 14 of
terminal block CTB1 located inside the control panel
(see Appendix 1). CTB1 for zone sensor connections.
Miscellaneous Connections
No additional connections required.
Programming
Options Key – Heating Subsection
• HEATING SYS TYPE = NONE, ELECTRIC,
HOT WATER/STEAM.
• ELEC HEAT CAPACITY = 11 KW, 17 KW, 34
KW, 68 KW.
Setpoints Key – Heating Subsection
• 1st STAGE HEATING SETPOINT = 80.0 – 95.0
0
F.
• 2ND STAGE HEATING SETPOINT = 95.0 –
115.0
0
F.
• OCC ZONE HEATING SETPOINT = 45.0 –
99.0
0
F.
• UNOCC ZONE HEATING SETPOINT = 45.0 –
99.0
0
F.
• HEAT LIMIT TEMPERATURE = 100.0 – 150.0
0
F.
Program Key - Heating Subsection
• HEATING SYSTEM = USER ENABLED.
• NIGHT SET BACK = USER ENABLED, USER
DISABLED.
• HW VALVE ACTION = DIRECT, REVERSE.
This is only used with Hot Water and Steam Heat
options.
FORM 145.05-SU3 (611)
ISSUE DATE 6/01/2011
JOHNSON CONTROLS
9
SECTION 3 - CONSTANT VOLUME UNITS