3.2.5
Stopping and Starting Control
It is possible to stop and start the controller without altering the setpoint. Press scroll
until the legend 'm-A' (manual/ auto) appears. In this controller, manual means OFF
and auto means ON. Press down
or up
once to show the current on/ off state:
'mAn' for OFF and 'Auto' for ON. Press down
or up
to change between manual
and auto (off and on) as required.
Note that timer modes 1 & 3 set the controller to 'mAn' at the end of the timing
period. If the controller unexpectedly does not control it may be in manual, possibly
as the result of previous use of the timer function.
3.2.6
Altering the Ramp Rate
It is only possible to limit the rate of heating by setting a ramp rate if the timer feature
is not in use.
To enable direct setting of the ramp rate, first ensure that the 'StAt' parameter and
'dwEll' parameter are both set to OFF (see sections 3.3.1 and 3.3.2).
Press scroll
until 'SPrr' (setpoint ramp rate) is displayed. Use down
or up
to
display and adjust the value.
The ramp rate sets the maximum rate of heating or cooling in degrees per minute. A
value of OFF cancels the ramp rate, allowing heating and cooling at the maximum rate.
When this feature is in use, there is a “working setpoint” which can be viewed at any
time by scrolling to 'w.SP' and pressing
or
.
Fig 1 and fig 2 indicate the possible difference between operating without and with a
ramp-to-setpoint value (depending on the load and the value used).
11
3.0 2132 Controller
Summary of Contents for CARBOLITE GERO VMF-ASTM
Page 4: ...10 2 Power Settings 38 11 0 Specifications 39 11 1 Environment 39 4 ...
Page 20: ...3 0 2132 Controller 3 7 Navigation Diagram 20 ...
Page 28: ...6 0 Maintenance Power Consumption Measure the current drawn on each phase cir cuit 28 ...
Page 40: ......
Page 41: ...Notes Service Record Engineer Name Date Record of Work ...
