DriSteem Vapor-logic3 Instrucciones de operaciones descargar pdf (Pagina 8)

Main control board connections (cont.)

J23 Wire terminal connection provides optically

isolated connection to air flow proving switch

and safety circuit. Terminal 12 supplies 24 VAC

to proving switch circuit, SPST, which closes

when air flow is present. Terminal 13 is the

return connection from the proving switch into

the VAPOR-LOGIC

control. Terminal 14

supplies 24 VAC to safety circuit, SPST, which

is closed under normal operating conditions.

Terminal 15 is the return connection from the

safety circuit into the VAPOR-LOGIC

control.

J25 Wire terminal connector provides input for RTD

tank temperature sensor. Terminal 19 supplies 21

VDC to temperature sensor. Terminal 20 is the

return connection from the temperature sensor

into the VAPOR-LOGIC

control. Terminal 18

has no connection.

J26 Wire terminal connector receives the necessary

signal from the controlling RH sensor.

• Terminal 21: Positive polarity 21 VDC supply

(25 mA max)

• Terminal 22: Control signal

• Terminal 23: Signal ground

• Input selector pin J17 configures J26 input

Product overview

Main control board connections (cont.).

Product overview:

Main control board connections

J27 Wire terminal connector receives the necessary

signal from the duct high limit RH sensor.

• Terminal 24: Positive polarity 21 VDC supply

(25 mA max)

• Terminal 25: Control signal

• Terminal 26: Signal ground

• Input selector pin J18 configures J27 input

J28 Wire terminal connector receives the necessary

signal from the window temperature sensor.

• Terminal 27: Positive polarity 21 VDC supply

(25 mA max)

• Terminal 28: Control signal

• Terminal 29: Signal ground

• Input selector pin J19 configures J28 input

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 74 75

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DriSteem Vapor-logic3 Instrucciones de operaciones Pagina 8

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