ZONEMASTER MAXIPOINT V2 DAMPER CONTROL SYSTEM
- Installation Manual
12
c)
The safety limits can be disabled by
pressing button once when it is
enabled, if this function is not required.
For instance, supply air sensor has not
been installed or the supply air sensor is
faulty and the replacement sensor is not
available immediately but the system
needs to run.
NOTE: If the limits are reached, ‘SAFETY
CONTROL’ will be displayed at the bottom
of the LCD screen (see figure on right) and
ON/OFF function of groups will be disabled
till supply air temperature moves back
within the limits or the H-limit and L-limit
protection is disabled (there is about one
minute delay after disabling the protection).
Check the air conditioning unit if ‘SAFETY
CONTROL’ displays at bottom of LCD screen.
4) Spill/Bypass Mode
Bypass and spill modes are safety features of the MaxiPoint V2 system
to prevent pressure from building up and causing duct damage. This
usually occurs if someone has turned off all the dampers while the A/C
unit is pumping air into the system leading to a pressure buildup (and
potential of puncture of the duct or joints splitting).
When opened zones in the system are less than the bypass/spill
set-point which is a percentage of opened zones against total zones,
the designated spill dampers or Bypass damper will be automatically
forced open to prevent pressure from building up.
