Specifications
19
VAPOR-LOGIC
®
3
control
VAPOR-LOGIC
3
is the standard controller for the
VAPORMIST. For more information regarding the
operation of the VAPOR-LOGIC
3
microprocessor, see
the VAPOR-LOGIC
3
Installation, Operation and
Maintenance Manual.
Control system start-up/checkout
1. Confirm that proper grounding and an approved
earth ground are provided.
2. Confirm that the control signal connected to the
VAPOR-LOGIC
3
system is compatible with the
VAPOR-LOGIC
3
program. Identify the
VAPOR-LOGIC
3
program code on the wiring
diagram. Refer to the VAPOR-LOGIC
3
manual to
decipher the code using the nomenclature
description.
3. Confirm all wiring is correct per wiring diagram.
4. Confirm J17, J18 and J19 shunt connectors on
VAPOR-LOGIC
3
board are in their correct position
per wiring diagram. See the VAPOR-LOGIC
3
manual for the physical locations.
5. Confirm that the keypad is mounted on the
VAPORMIST with modular cable routed away from
high voltage circuits and connected to the J2
female connector on the control board.
6. Turn on water supply. Confirm drain valve is
closed.
VAPORMIST
®
START-UP AND OPERATION
7. Turn on power. The keypad will display the
introduction of VAPOR-LOGIC
3
and will then enter
AUTO mode.
8. The system will initiate filling of the tank with
water. The keypad will display "Filling" as part of
the idle screen information.
9. Airflow switch input must be closed.
10. High limit humidistat input must be closed or
variable air volume (VAV) control system high limit
transmitter must be connected.
11. Sufficient water in the tank, airflow switch closed,
high limit humidistat closed, and a call for humidity
will activate the heat output.
If the tank does not contain water and the heat
output is activated by the VAPOR-LOGIC
3
control system, a serious failure will result.
Immediately remove power from the system
and verify that all wiring has been completed
per the wiring instructions in the manual and
the unit wiring diagram.
12. During normal operation, the keypad will
display humidifier operating status. See the
VAPOR-LOGIC
3
manual for descriptions to
change any of the operating parameters.
VM99-C-0302.pdf 19 11/19/2009 9:51:32 AM