DriSteem Vapor-Logic Instalační příručka stáhnout pdf (Strana 63)

DRI-STEEM GTS Humidifier Installation, Operation, and Maintenance Manual • Page 61

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Cool down humidifier before beginning maintenance

Before performing any maintenance, allow the tank to cool down.

• Insulated and uninsulated tanks will have hot surfaces.

• Verify that there is no call for humidity and that the aquastat set

point (adjusted using the keypad/display Set Up screens) is less

than room temperature (default setting is 40 °F [4 °C]) so the

burners do not energize while cooling down the tank.

• Models with a standard drain valve:

– Manually open the drain valve by moving the valve lever

located on the back of the drain valve to the manual open

position.

– The fill valve eventually opens.

– Let the fill water run until the tank is cooled; then shut off the

field-installed manual supply water shut-off valve.

– Let the tank drain; then manually close the drain valve.

M a i n t e n a n c e : G T S s t a n d a r d w a t e r

m o d e l s ( c o n t i n u e d )

W A R N I N G !

When performing maintenance on the GTS

humidiﬁer, always change the control mode

to Standby, place all power disconnects in

OFF position and lock in OFF position, close

the ﬁeld installed manual water supply and

gas shut-off valves. Failure to follow these

instructions may cause severe bodily injury

or death from electric shock.

• For models without a manually operated drain valve, use the

keypad to perform the cool down process.

– From the Main menu, enter the Tank Status submenu.

– Change mode to Drain, and allow approximately half the water

to drain out of the tank.

– Change the mode back to Auto; the fill valve opens and the

humidifier cools down.

– When the fill valve closes, go back into Drain mode, and allow

the tank to drain completely. The humidifier should be cool

enough to work on.

– For more information about using the keypad, see the

Vapor-logic4 Installation and Operation Manual.

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Maintenance

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DriSteem Vapor-Logic Instalační příručka Strana 63