FORM 195.26-NM3
YORK INTERNATIONAL
53
“OFF”: SYS 1 Liquid Line Solenoid De-energized
(Closed).
“ON”:
SYS 1 Liquid Line Solenoid Energized (Open).
This message informs the operator of the number of
stages of loading which are active on SYS 1.
This message informs the operator of the number of
forward running fans which are active on SYS 1.
This message informs the operator whether the revers-
ing fan is active on SYS 1.
This message informs the operator whether the Hot
Gas Solenoid is ON or OFF. The micro will activate the
Hot Gas signal regardless of whether or not this option
is installed.
The Run Time for SYS 1 since the last start is dis-
played.
“OFF”: Sys 2 Liquid Line Solenoid De-energized
(Closed).
“ON”:
Sys 2 Liquid Line Solenoid Energized (Open).
This message informs the operator of the number of
stages of loading which are active on SYS 2.
This message informs the operator of the number of
forward running fans which are active on SYS 2.
This message informs the operator whether the revers-
ing fan is active on SYS 2.
This message informs the operator whether the Hot
Gas Solenoid is ON or OFF. The Micro will activate the
Hot Gas signal regardless of whether or not this option
is installed.
The Run Time for SYS 2 since the last start is dis-
played.
History
The HISTORY key also allows the user to scroll through
the SAFETY SHUTDOWN buffers to display informa-
tion relating to the last 3 Safety Shutdowns which
occured. Information contained in the SAFETY SHUT-
DOWN Buffers is very important when attempting to
troubleshoot a system problem. This data reflects sys-
tem conditions at the instant the fault occcured.
Information is stored in the SAFETY SHUTDOWN Buff-
ers on every fault regardless of whether the fault caused
a Lockout to occur. The information is also not affected
by power failures (long term internal memory battery
back-up is built into the circuit board) or manual reset-
ting of a fault lock-out.
When the HISTORY key is passed, the following mes-
sage will appear.
The operator must then select which SAFETY SHUT-
DOWN Buffer which is desired. When deciding this,
keep in mind that Buffer No. 1 is always the most re-
cent fault. As new fault information is stored, it is al-
ways placed in Buffer No. 1, No. 1 is loaded to No. 2,
No. 2 is loaded to No. 3, and information previously in
No. 3 is discarded.
To select a buffer, simply press the “1”, “2”, or “3” EN-
TRY key and press ENTER. Repetitively pressing the
ENTER key will allow the operator to scroll through the
information available in the SAFETY SHUTDOWN
Buffer.
In the information that follows, a sample message along
with an explanation is provided for all available mes-
sages.
S Y S 1 L I Q U I D L I N E
S O L E N O I D S T A T U S O F F
S Y S 1 S T A G E S O F
L O A D I N G
2
S Y S 1 F O R W A R D F A N S
S T A T U S
2
S Y S 1 R E V E R S E F A N
S T A T U S
O F F
S Y S 1 H O T G A S B Y P A S S
V A L V E S T A T U S
O F F
S Y S 1 R U N T I M E
2 0 0 S E C S
S Y S 2 L I Q U I D L I N E
S O L E N O I D S T A T U S O N
S Y S 2 S T A G E S O F
L O A D I N G
1
S Y S 2 F O R W A R D F A N S
S T A T U S
O F F
S Y S 2 R E V E R S E F A N
S T A T U S
O F F
S Y S 2 H O T G A S B Y P A S S
V A L V E S T A T U S
O N
S Y S 2 R U N T I M E
0 S E C S
D I S P L A Y S A F E T Y S H U T -
D O W N
N O . 1 ( 1 T O 3 )
