York YCAS0130 - Manual (Page 148)

148 YORK INTERNATIONAL
FORM 201.19-NM1 (204)
Micro Panel Contents
Closed:
Placing the switch in the CLOSED position, disables
motor current averaging protection at start-up. It is rec-
ommended that this option be selected to avoid nuisance
start-up trips especially at extreme ambient/operating
conditions.
SWITCH 6: Heat Recovery
Open:
Placing the switch in the OPEN position, disables the
heat recovery option. The switch MUST be placed in
the OPEN position.
Incorrect programming may cause
damage to the chiller.
Closed:
DO NOT USE THIS POSITION.
Incorrect programming may cause
damage to the chiller.
SWITCH 7: Expansion Valve Type
Open:
Placing the switch in the OPEN position, confi gures the
chiller for a TXV. TXV's will never be used on standard
chiller packages. The switch MUST NEVER be placed
in the OPEN position.
Closed:
Placing the switch in the CLOSED position, confi gures
S 1 - 5 M O T O R C U R R E N T
A V E R A G I N G D I S A B L E D
S 1 - 6 H E A T R E C O V E R Y
D I S A B L E D
S 1 - 6 H E A T R E C O V E R Y
E N A B L E D
S 1 - 7 E X P A N S I O N V A L V E
T H E R M O S T A T I C
S 1 - 7 E X P A N S I O N V A L V E
E L E C T R O N I C
SUMMARY OF SETTINGS
The following table gives a summary of Modes (dis-
played messages) which can be selected using the Open
and Closed positions for each of the eight SW1 Dip
Switches.
SWITCH
SWITCH "OPEN"
SETTING
SWITCH "CLOSED"
SETTING
1 Water Cooling Glycol Cooling
2
Standard Ambient
Control
Low Ambient Control
3 Refrigerant R-407C Refrigerant R-22
4 Do Not Use YCAS
5 Do Not Use
Motor Current
Averaging (Start-Up)
Disabled
6
Heat Recovery
Disabled
Do Not Use
7
Expansion Valve
Thermostatic
Expansion Valve
Electronic*
8
Standard Options
Enabled
Do Not Use
3.8 FUNCTION KEY
Pressing the Function key only displays the same mes-
sage as pressing the Status key. Pressing the Function
key followed by another display key will scroll through
all the data available under that key once. E.g., press ing
the Function key followed by the System 1 Data key will
result in scrolling through the 5 displays shown in Sec tion
3.3 without the need to press the System 1 Data key to
scroll to the next display. After scrolling through the data,
the display returns to the status mes sage.
The following keys can be scrolled using the Function
Key: Chilled Liquid Temps, System # Data, Motor Cur-
rent and Options.
the chiller for an EEV (Electronic Expansion Valve).
The switch MUST be placed in the CLOSED posi-
tion.
Incorrect programming may cause
damage to the chiller.
SWITCH 8: Standard Options
Open:
Standard Options Enabled.
Closed:
Do ot use.