DriSteem Vapor-logic3 Instrucciones de operaciones descargar pdf (Pagina 7)

Main control board connections (cont.)

Important note about J17, J18 and J19:

All connection diagrams show connector shunts

on J17, J18 and J19. The connector shunts and

appropriate software have been selected by

DRI-STEEM based on original customer orders.

Field changing the input connector shunts will

require control input modification: See Page

23 “Changing Control Input.”

J17 Jumper pins determine the configuration of the

type of input control into the RH sensor input

(terminals 21 through 23) for wire terminal

connector J26.

• R = Resistance, 0-150 ohms range

– Used with on-off humidistats, staging

switches, PE switches

– Used with analog 0-150 ohm input device

(pneumatic transducer or humidistat)

• I = Milliamp, 0-20 mA range

– Used with any humidity sensor with

4-20 mA output

– Used with any computer or energy

management system with 4-20 mA output

– Internal resistance 249 ohms, terminal 22

proportional signal, terminal 23 signal

ground

• V = Volts DC, 0-15 volt range

– Used with any control humidistat 0-15V DC

– Terminal 21 provides positive 21 VDC

supply, terminal 22 proportional signal,

terminal 23 signal ground

Product overview

Main control board connections (cont.).

Product overview:

Main control board connections

J18 Identical to J17 input selector pins except used

to configure duct high limit RH input (terminals

24 through 26) for wire connector terminal J27

J19 Identical to J17 input selector pins except used

to configure window temperature sensor input

(terminals 27 through 29) for wire connector

terminal J28

J20 Wire terminal connector supplies 24 VAC

voltage via terminals 1 and 2 to the fill valve

and via terminals 3 and 4 to the drain valve.

J21 Wire terminal connector supplies 24 VAC

voltage via terminals 5 and 6 to the power

contactor and via terminals 7 and 8 to the SDU

relay.

J22 Wire terminal connection allows for remote

fault indication. Relay closure is provided

(1 amp max.).

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DriSteem Vapor-logic3 Instrucciones de operaciones Pagina 7

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