ST-37 –
Instruction Manual
day
in the second mode, the change is defined for working days (Monday -
Friday) and weekend days (Saturday - Sunday)
When the function is enabled, the main page displays "t1" or "t2" (the digits
indicate the active mode) to indicate that the week-based regulation is active.
II.p) Temperature Alarm
The alarm activation time is adjusted with
PLUS
/
MINUS
. The set time is
stored after pressing
OPTIONS
.
The function is enabled only in the
operation
mode (i.e. when the furnace temperature is lower than the
setpoint temperature
). When the furnace temperature fails to rise in the user-
defined period, an alarm is activated: the feeder and the fan are shut off (the
water pump is switched on and off independently) and the alarm is sounded.
The display shows an appropriate message (see Protections).
II.q) Stand-by in Sustain Mode
The function accessible from this menu is used for regulating the furnace
while in the
sustain
mode. This is to prevent damping of the furnace when
- 16 -
22
o
c 56
o
c
C.H. ON
Temp Alarm
Stand-by in Sustain
20 min
Stand-by in Sustain
22
o
c 56
o
c
C.H. ON
Room Reg
Temp Alarm
3 h
Temp Alarm
Summary of Contents for ST-37
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