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Installation - Controls
reactivation blower motor (MTR2), and supply blower
motor (MTR3-optional) are all de-energized.
NOTICE
Equipment Damage!
Failure to follow all instructions could result in
equipment damage!
Do not shut down unit by de-energizing main power
prior to the completion of the purge cycle. Wait for
PURGING to change to STANDBY or READY before de-
energizing main power.
Faults and Warnings
Important:
Press ESC or Help button twice quickly to exit
back to the system screen at any time during
screen navigation.
Table 5.
List of system and DH faults
Fault
FAULT - D/H WHEEL MOTOR STARTER PROTECTOR
TRIPPED
FAULT - REACTIVATION MOTOR STARTER
PROTECTOR TRIPPED
FAULT - SUPPLY BLOWER MOTOR STARTER
PROTECTOR TRIPPED/ VFD FAULT (optional)
10
Alarm Indication
Fault and warning indication include the HMI display and fault
warning lights. The HMI will display the blinking triangle with
exclamation point and the fault message on the Alarm screen.
See
Figure
A fault results in the red light (LT02) constantly illuminating.
Figure 4.
Description
If the desiccant drive motor starter/protector (MSP1) trips, the system is faulted.
The system will go into the shutdown
contacts close in sequence
("Auxiliary Dry Contacts - Operational System States," p.
blower (optional) will purge.
The dehumidifier will be held in the Fault condition by (PLC1).
To restart the dehumidifier:
1.
Clear the alarm pressing the acknowledge ACK on the HMI.
2.
Reset the overload, go to the ALARM screen, and press the F4 RESET key, which resets
the PLC.
To restart the system:
1.
Move the selector switch (SS01) to the OFF position.
2.
Move the (SS01) back to the AUTO or MANUAL position.
If the reactivation blower motor starter/protector (MSP2) trips, the system is faulted.
The dehumidifier goes into the shutdown sequence. See
operation:," p. 9
and
"Auxiliary Dry Contacts - Operational System States," p.
The dehumidifier will be held in the Fault condition by (PLC1).
To restart the dehumidifier:
1.
Clear the alarm pressing the acknowledge ACK on the HMI.
2.
Reset the overload, and go to the ALARM screen, and press the F4 RESET key, which
resets the PLC.
To restart the system:
1.
Move the selector switch (SS01) to the OFF position.
2.
Move the (SS01) back to the AUTO or MANUAL position.
If the supply blower motor starter/protector (MSP3) trips or the customer-supplied variable
frequency drive (VFD) goes into a Fault, the system is faulted.
The system goes into the shutdown sequence. See
p.
9, and
"Auxiliary Dry Contacts - Operational System States," p.
The dehumidifier will be held in the Fault condition by (PLC1).
To restart the dehumidifier:
1.
Clear the alarm pressing the acknowledge ACK on the HMI.
2.
Reset the overload, and go to the ALARM screen, and press the F4 RESET key, which
resets the PLC.
To restart the system:
1.
Move the selector switch (SS01) to the OFF position.
2.
Move the (SS01) back to the AUTO or MANUAL position.
4.
HMI alarm indication
("Shutdown," p.
9) sequence and the system auxiliary dry
"Normal shutdown sequence of
"Normal shutdown sequence of operation:,"
9.
9), process
9.
SRV-SVX04C-EN
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