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ADVANCED FEATURES

FRESH AIR CONTROL (IAQ)

SMARTZONE-4X CAN AUTOMATICALLY ENERGIZE FAN (G) AND 

OPEN THE FRESH AIR DAMPER (ZONE 4) FOR A CONFIGURABLE  

# MINUTES PER HOUR (FRESH AIR RUN TIME)

ASHRAE 62.2 NOTES

FRESH AIR CFM

Floor 

Area

 

BEDROOMS

 

0-1 

2-3 

4-5 

6-7 

>7 

< 1500 

30 

45 

60 

75 

90 

1501 - 3000 

45 

60 

75 

90 

105 

3001 - 4500 

60 

75 

90 

105 

120 

4501- 6000 

75 

90 

105 

120 

135 

6001 - 7500 

90 

105 

120 

135 

150 

>7500 

105 

120 

135 

150 

165 

 

     [(TOTAL SQ. FT.)/100] 

+ [(# OF B1) X 7.5 ]

1

 DETERMINE THE FRESH AIR CFM TO COMPLY WITH ASHRAE 62.2 USING THE TABLE BELOW

OR THIS FORMULA:

CLOSED = ENABLED, OPEN = DISABLED

WHEN ZONE 4 IS CONFIGURED AS FRESH AIR, CONNECTING A 

SWITCH OR SENSOR (24VAC) TO THE ZONE 4 THERMOSTAT 

TERMINALS WILL ACTIVATE ADVANCED FRESH AIR FEATURES. 

ADVANCED FRESH AIR

Y = ECONOMIZER

G = DEMAND FRESH AIR

W = ONLY WITH EQUIPMENT

O

/

B

 = FRESH AIR OFF

FOR BASIC FRESH AIR: DO NOT CONNECT TO THESE TERMINALS.

FRESH AIR RUN TIME 

= 60 X

FRESH AIR CFM

MEASURED-CFM

FRESH AIR CONFIGURATION

4

HI TEMP

LO TEMP

SUPPLY

PURGE

DELAY

ECO

FA

HI TEMP

LO TEMP

SUPPLY

PURGE

DELAY

ECO

2

3

PRESS 

▲▼

 TO SELECT 

THE # OF MINUTES PER 

HOUR FOR FRESH AIR RUN 

TIME (IN 5 MINUTE 

INCREMENTS)

PRESS STAT TYPE BUTTON 

TO SELECT ZONE 4

PRESS UP

 BUTTON 

TO SELECT FA

PRESS STAT TYPE AGAIN

4

0

HI TEMP

LO TEMP

SUPPLY

PURGE

DELAY

ECO

I5

HI TEMP

LO TEMP

SUPPLY

PURGE

DELAY

ECO

5

PRESS STAT TYPE AGAIN 

(OR WAIT 5 SECONDS) TO 

STORE SETTINGS

1

SE

HI TEMP

LO TEMP

SUPPLY

PURGE

DELAY

ECO

ADJUST SETTINGS

STAT

 TYPE

FA

HI TEMP

LO TEMP

SUPPLY

PURGE

DELAY ECO

FRESH AIR OPERATION

FRESH AIR RUN-TIME IS ATTEMPTED DURING EQUIPMENT CALLS 

BUT WILL BE COMPLETED AT THE END OF THE HOUR 

AUTOMATICALLY TO SATISFY THE FRESH AIR RUN-TIME SET BY 

USER EVEN IF EQUIPMENT HAS NOT RUN

R

Y
G

O/B

W

C

Z

O

N

E

 1

 S

T

A

T

Z

O

N

E

 4

 S

T

A

T

2

 MEASURE THE CFM PROVIDED BY THE FRESH AIR DAMPER WITH AN ANEMOMETER

3

 CALCULATE FRESH AIR RUN TIME AND SET THIS # AS DESCRIBED ABOVE IN STEP 4

FOR  MORE  INFORMATION 

ABOUT  ADVANCED  FRESH 

AIR ESPECIALLY ECONOMIZER 

AND  OTHER  ACCESSORIES  

SEE “SMARTZONE FRESH AIR 

–  ECONOMIZER  GUIDE” 

AVAILABLE AT ECOJAY.COM

SMARTZONE-4X VERSION 8E FIRMWARE ONLY

(OPTIONAL ACCESSORY 

AVAILABLE -SEE BELOW)

57.8

VENT
OFF

AUTO

F

REE

 C

OOL

 

O

FF

/A

UTO

SETPOINT

F

RESH

 A

IR

O

UTDOOR

 T

EMP

V

ENT

 

O

N

/O

FF

THERMOSTAT

PART # AFET

Summary of Contents for SmartZone ZS2X-2.0

Page 1: ...ONE 4X ZS4X 2 0 8E HI TEMP LO TEMP SUPPLY PURGE DELAY ECO THERMOSTATS HEAT PUMP OR GAS ELECTRIC EASY TO READ DISPLAY LEDs SHOW HEAT COOL CALLS NO VOLTMETER REQUIRED SCREWLESS WIRING TERMINALS FRESH AI...

Page 2: ...STAGE HEAT OR REVERSING VALVE ORANGE 10 AMP 24VAC CONTACT RATING 40VA POWER CLOSE SPRING OPEN DAMPERS 10VA POWER OPEN SPRING CLOSE DAMPERS 10VA POWER OPEN POWER CLOSE DAMPERS 3VA LABEL DESCRIPTION LE...

Page 3: ...DED BY ANY ADDITIONAL PRESSURE RELIEF q REFER TO DUCT DESIGN BYPASS PAGE 3 4 q CALCULATE MINIMUM 24VAC TRANSFORMER VA CAPACITY PAGE 5 q CHECK PRIMARY AND SECONDARY VOLTAGE FOR ZONING TRANSFORMER MAKE...

Page 4: ...E CFM CFM ROUND CFM CHART BYPASS PRESSURE RELIEF BYPASS SIZING SELECT A DAMPER SIZE WITH A MAX CFM GREATER THAN THE CFM NEEDED TO BYPASS USE THE FORMULA BELOW TO CALCULATE CFM NEEDED TO BYPASS AND THE...

Page 5: ...E SPEED EQUIPMENT AVOID CREATING MORE THAN THREE ZONES WITH NO ZONE SMALLER THAN 20 OF THE TOTAL EQUIPMENT CFM CAPACITY RETURN AIR UNDERSIZED RETURN AIR DUCTS REGISTERS CAN RESULT IN PROBLEMS DUE TO I...

Page 6: ...DETAILS IN ZONING GUIDE ENERGIZES FAN AFTER 90 SECOND DELAY WITH HEATING 2ND STAGE ACTIVE NORMAL AUX HEAT COMPRESSOR ELECTRIC HEAT STRIPS REVERSE VALVE ON IN COOLING EQUIPMENT GAS ELECTRIC STANDARD HE...

Page 7: ...TRIC OR DUAL FUEL AFTER COIL BEFORE BLOWER SAS INCLUDED ALWAYS TO THE LEFT EXCEPT FOR 5 THROUGH 20 ZONES DETAILS PAGE 14 ENERGIZES FAN IMMEDIATELY WITH HEATING 2ND STAGE ENERGIZES ONLY IF MORE THAN ON...

Page 8: ...ED NOTE ALWAYS DISCONNECT POWER TO SMARTZONE WHILE MAKING ANY WIRING CHANGES DO NOT USE EQUIPMENT TRANSFORMER 24 VAC COMMON TRANSFORMER PRIMARY INSTALLATION DO NOT CONNECT POWER UNTIL ALL WIRING IS CO...

Page 9: ...G 24VAC R HEATING EH O B PC PO COM POWER OPEN POWER CLOSE 24 VAC 2 3 VA SPRING OPEN POWER CLOSE 24 VAC 6 10 VA DAMPERS SUPPLY TEMP EQUIPMENT REQUIRES SEPARATE TRANSFORMERS FOR HEAT AND COOL NOTE RELAY...

Page 10: ...2 STAGE GAS ELECTRIC H2 2 STAGE HEAT PUMP 4 HI TEMP LO TEMP SUPPLY PURGE DELAY ECO ZONE PRESS RELEASE THE UP ARROW BUTTON WHEN THE DISPLAY IS SHOWING SUPPLY TEMPERATURE THE HI TEMP INDICATOR WILL FLA...

Page 11: ...LS OTHER ZONES WILL ONLY OPEN AND CLOSE DAMPERS AS NEEDED FLASH ON SE SETTING CHANGES STORED IN MEMORY THIS WILL SHOW UP AFTER ADJUSTING ANY SETTING INCLUDING STAT TYPE LIMIT TEMPERATURES AND FRESH AI...

Page 12: ...E SMARTZONE SYSTEM WILL BE LOCKED INTO EMERGENCY HEAT THE COMPRESSOR WILL NOT ENERGIZE AND ONLY HEATING CALLS WILL BE RECOGNIZED FROM ANY ZONE OTHER THAN ZONE 1 ONLY W1 EH AND G WILL BE ALLOWED TO ENE...

Page 13: ...10 2ND STAGE WILL NOT RE ENERGIZE UNTIL AFTER 3 MINUTES OFF TIME IF SUPPLY TEMP IS WARMER THAN HI TEMP SEE ADJUST LIMITS FAN WILL RUN BUT W1 WILL DE ENERGIZE FOR 3 MINUTES AND UNTIL SUPPLY TEMP IS CO...

Page 14: ...LAY ECO 2 3 PRESS TO SELECT THE OF MINUTES PER HOUR FOR FRESH AIR RUN TIME IN 5 MINUTE INCREMENTS PRESS STAT TYPE BUTTON TO SELECT ZONE 4 PRESS UP BUTTON TO SELECT FA PRESS STAT TYPE AGAIN 4 0 HI TEMP...

Page 15: ...HE PRIMARY AND SECONDARY POLARITY MUST BE THE SAME ON ALL SMARTZONE 4X BOARDS 24VAC 24VAC FIRMWARE VERSION SHOWN ON DISPLAY AFTER RESET OR POWER UP CONNECT EQUIPMENT SAS ONLY TO MAIN ZONES 1 4 SMARTZO...

Page 16: ...FAN SPEED WIRING POWER ETC ANY PROBLEM ASSOCIATED WITH THE EQUIPMENT A INCOMPATIBLE POWER STEALING NO COMMON B DEFECTIVE THERMOSTAT C WIRING DEFECT D STAT TYPE SETUP HEAT PUMP ONLY A ACTUATOR FAILURE...

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