Code Alarm SRT 1600 Instalační manuál stáhnout pdf (Strana 49)

Economizer Control Board (ECB)

The ECB controls the economizer actuator. (See Fig. 17 and Table

17.) The control signal from the ECB uses either the MFT

(Multi-Function Technology) digital communication protocol or a

4 to 20 mA output signal as defined by the configuration

Configuration→ECON→E.CTL. The ECB has inputs for

Indoor Air Quality (IAQ), Outdoor Air Quality (OAQ), enthalpy

and RH sensor. It also controls two power exhaust outputs.

By digitally communicating with the ECB, the economizer

actuator is able to provide the damper position and diagnostic

information to the ComfortLink controller. The damper

position is displayed at Outputs→ECON→EC.AP. Diagnostic

information is displayed via Alert T414. More information about

these alarms is contained in the Alarms and Alerts section.

NOTE: The Economizer Control Board (ECB) has a

4-position DIP switch that is factory set to ‘0’ (ON, towards the

center of the board). Do not change this setting.

C07027

Fig. 17 -- Economizer Control Board (ECB)

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Code Alarm SRT 1600 Instalační manuál Strana 49