Engineered Comfort Fan Coil Controller EZstat Dokumentacja Pobierz pdf (Strona 24)

Installation and Operation Manual

●

Fan Coil Controller – EZstat

EC-EZstat

Date: 9-2014 Supersedes: NEW

Engineered Comfort reserves the right to change any information concerning product or speciﬁcation without notice or obligation.

Page 24 of 36

Procedure Steps Display

Set Mod Fan

Acon

From the SYSTEM menu choose MOD FAN and then choose one of

the following motor types:

• STEP (3‑speed only)

• MODULATE (default – ECM only)

Enter

MOD FAN ACTION

STEP

MODULATE

Set Auto Fan

Reset

From the SYSTEM menu choose AUTO FAN RESET for ECM

applicaons only.

To adjust default me of 60 mins, select LOCAL OVRD TIME. This

funcon protects from user accidentally changing out Auto Mode on

interface. The control will reset back to Auto Mode, while ensuring

the eciency benets of the variable speed motor.

Enter

AUTO FAN RESET

ENABLE

DISABLE

Set Stage 1 Fan

(two pipe only)

From the SYSTEM menu choose Stage 1 fan.

Select the fan % for Stage 1.

Enter

STAGE 1 FAN:

50%

Set Stage 2 Fan

(two pipe only)

From the SYSTEM menu choose Stage 2 fan.

Select the fan % for Stage 2.

Enter

STAGE 2 FAN:

100%

Set the valve

acon

Select one of the valve acons from the SYSTEM menu.

• VLV ACTION (two pipe only)

• CL VALVE ACTION (four pipe only)

• HT VLV ACTION (four pipe only)

• MAX VLV LOW

• MAX VLV MED

• MAX VLV HIGH

Not all choices apply to every applicaon.

Four Pipe View









Four Pipe View

Valve acon selecons:

• NORMAL OPEN – The valve changes from fully open to fully

closed as the EZstat varies the valve output from 0 to 10 volts

• NORMAL CLOSED – The valve changes from fully closed to fully

open as the EZstat varies the valve output from 0 to 10 volts.









Two Pipe View

• MAX VLV LOW (two pipe only) – Select % valve, opens for low

fan speed

Enter

MAX VLV LOW:

100%

• MAX VLV MED (two pipe only) – Select % valve, opens for

medium fan speed

Enter

MAX VLV MED:

100%

• MAX VLV HIGH (two pipe only) – Select % valve, opens for high

fan speed

Enter

MAX VLV HIGH:

100%

NOTE

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