Hired-Hand Emergency Back-Up and Alarms: Secondary Sensing System - Manual (Page 8)

Manual No. 4801- 2997 Rev 7-08 Secondary Sensing System 8 of 40
5.1.3 High Limit
The High Alarm Temperature is the high temperature at which the controller will indicate an alarm
condition. The High Alarm Temperature is displayed and can be changed using Zone Input Switches
(Zones 1, 2, or 3) then using the Plus (+) or Minus (–) buttons.
The High Back-Up Limit is the high temperature at which Cool 1 of the Back-Up will turn ON.
See Section 8 (Back-Up Operating Conditions). The High Back-Up Temperature is displayed and can
be changed (1.0° increments) using the Select Button then using the Plus (+) or Minus (–) buttons.
NOTE: The High & Low Limits for the temperature sensors can be set individually or can be
programmed to be identical using program parameter P2 (See Section 6).
5.1.4 Low Limit
The Low Alarm Temperature is the low temperature at which the controller will indicate an alarm
condition. The Low Alarm Temperature is displayed and can be changed using Zone Input Switches
(Zones 1, 2, or 3) then using the Plus (+) or Minus (–) buttons.
The Low Back-Up Limit is the low temperature at which Heat of the Back-Up will turn ON.
See Section 8 (Back-Up Operating Conditions). The Low Back-Up Temperature is displayed and can be
changed (1.0° increments) using the Select Button then using the Plus (+) or Minus (–) buttons.
NOTE: The High & Low Limits for the temperature sensors can be set individually or can be
programmed to be identical using program parameter P2 (See Section 6).
High Back-Up Limit Temperature
High Alarm Limit Temperatures for Specific Zones Zone Input Switches
Select Switch
Low Back-Up Limit Temperature
Low Alarm Limit Temperatures for Specific Zones Zone Input Switches
Select Switch