DriSteem Vapor-Logic Installation Guide download pdf (Page 12)

pad will display “LOW WATER” as part of auto scroll

text.

11. Airflow switch input must be closed.

12. High limit humidistat input must be closed or

Variable Air Volume (VAV) control system high limit

transmitter must be connected.

13. If aquastat option is furnished, connections to

terminals #16 and #17 are necessary.

14. With sufficient water in tank, (on some newer

models a green LED lamp on the control board will be

illuminated), airflow switch closed, high limit humidistat

closed, and a call for humidity, the heater outputs will

be energized. If the tank does not contain water and

the heaters are energized by the VAPOR-LOGIC

control system, a serious failure will result. Immediately

remove power from the system and verify that all wiring

is done per the wiring instructions in this manual and

the unit wiring diagram.

15. During normal operation, the key pad will display

auto scroll features of humidifier operating status. See

pages 30 and 31 for descriptions.

16. To change any of the operating parameters,

depress the “MODE” key on key pad to activate the

VAPOR-LOGIC main menu. Use the up-down arrow

keys to select a main menu item. Press ENT key to

allow you to change the operating parameters. Refer to

pages 21 and 22 for a complete description and pages

30 and 31 for all the other possible main menu items.

17. If necessary to restart VAPOR-LOGIC, depress

the reset button on the electrical sub-panel, hold for a

few seconds, then release.

1. Confirm that the control signal being connected to

the VAPOR-LOGIC

system is compatible with the

VAPOR-LOGIC program. Identify the VAPOR-LOGIC

program code on the wiring diagram or on the outside

of control cabinet door. Refer to the VAPOR-LOGIC

Manual to decipher the code using the nomenclature

description on page 3.

2. Confirm all wiring is correct per wiring diagram.

3. Confirm that proper grounding and an approved

earth ground are provided.

4. Confirm J9, J10, J11 shunt connectors on

VAPOR-LOGIC board are in their correct position per

wiring diagram. See page 14 for the physical locations.

5. Confirm four position slide switch on

VAPOR-LOGIC board is in “AUTO” position.

6. Confirm that the digital key pad is mounted on the

outside of the control cabinet with modular cable routed

away from the high voltage circuits and connected to

either J1 or J2 female connector on control board.

7. Turn water supply on, confirm drain valve is closed.

8. Turn power on, the key pad will display the

introduction of “VAPOR-LOGIC”, transfer into

INITIALIZING, and the enter into AUTO mode. In

AUTO mode, the system will continuously scroll system

operations status (see pages 33 and 34).

9. In normal operation, the red LED lamp on

VAPOR-LOGIC board will blink off-on like a heart beat.

(In fault mode, the red LED lamp will blink a pulse

code.)

10. System will initiate filling of the tank with water, key

START-UP INSTRUCTIONS

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DriSteem Vapor-Logic Installation Guide Page 12

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