YORK INTERNATIONAL
93
FORM 150.62-NM7 (103)
Also see the UNIT KEYS PRO GRAM MING QUICK
REF ER ENCE LIST in Table 22, Page 94.
CLOCK
The CLOCK display shows the current day, time, and
date. Pressing the CLOCK key will show the current
day, time, and date.
It is important that the date and time be correct, oth er wise the
daily schedule will not func tion as desired if pro grammed. In
addition, for ease of trou ble shoot ing via the History print outs,
the day, time, and date should be cor rect.
To change the day, time, and date press the CLOCK
key. The display will show something sim i lar to the fol-
low ing:
The line under the F
is the cursor. If the day is correct,
press the ENTER/ADV key. The cursor will move under
the 0 in 08 hours. If the day is incorrect, press the UP
or DOWN arrow keys until the de sired day is displayed
and then press the ENTER/ADV key at which time the
day will be ac cept ed and the cur sor will move under
the fi rst digit of the “2 digit hour”. In a sim i lar man ner,
the hour, minute, me rid i an, month, day, and year may
be pro grammed, when ev er the cur sor is un der the fi rst
let ter/nu mer al of the item. Press the UP or DOWN arrow
keys until the de sired hour, minute, me rid i an, day, month,
and year are dis played. Press ing the EN TER/ADV Key
will save the valve and move the cursor on to the next
pro gram ma ble variable.
Jumper J11 on the microboard must
be set to the “CLKON” po si tion to turn
on the clock. If this is not done, the
clock will not func tion.
Option 13 – Unit Type:
The UNIT TYPE message cannot be modifi ed under
the unit keys.
“LIQUID CHILLER” must be dis-
played, or damage to compressors or
other com po nents will oc cur if op-
er at ed in the HEAT PUMP or CON-
DENS ING UNIT modes.
If unit type needs to be changed to make the unit a
liquid chiller, remove the jumper between J4-6 and
J4-11 and reapply power to the micropanel.
Option 14 – Refrigerant Type:
Refrigerant type R-22 or R-407C may be selected un-
der Service Mode. Refrigerant type is displayed under
the Options Key, but is only programmable in Service
Mode.
Incorrect pro gram ming may cause
dam age to com pres sors.
Option 15 – Expansion Valve Type:
Expansion valve type, thermostatic or elec tron ic
may be selected under Service Mode. Expansion valve
type is displayed under the Options key, but is only pro-
gram ma ble in Service Mode.
Incorrect pro gram ming may cause
dam age to compressors.
2
U N I T T Y P E
L I Q U I D C H I L L E R
R E F R I G E R A N T T Y P E
R - 2 2
E X P A N S I O N V A L V E T Y P E
T H E R M O S T A T I C
T O D A Y I S F R I 0 8 : 5 1 A M
2 5 J A N 0 2
S O F T S T A R T
D I S A B L E D
This MUST be selected on all chillers without the soft
start option.
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