TOTALINE P374-1900 Owner's Manual page 95

Explanation of Jumper Settings Explanation of Jumper Settings
Y2 JUMPER SETTING
If the jumper for MISC1 is set to Y2 the MISC1 screw terminal on the backplate will control a
second stage of cooling.
Y2 OPERATION - Page 14.4
Control up to two Cool stages.
The 2nd Stage of heat or cool is turned on when:
(A) The 1st Stage has been on for the time required (step #28,
page 14.6). It is adjustable from 0-60 minutes and the default
is two minutes.
And
(B) The temperature spread from the setpoint is equal to or greater
than: the setpoint plus the deadband (step #25, page 14.5), plus
the 2nd deadband (step #26, page 14.5). This 2nd deadband is
adjustable from 0-10 degrees and the default is two degrees.
Deadband
db 1
(adj. 1-6 )
Cool
Setpoint
TEMPERATURE
21
(continued) (continued)
Cooling
Deadband
db 2
(adj. 0-10 )
1st Stage
2nd Stage
turn on turn on
INCREASE
Page 21.5
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