PART# ZS2L
INSTALLATION GUIDE
GAS / ELECT ● HEAT PUMP ● DUAL FUEL
2 STAGE COOL - 3 STAGE HEAT
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● © 2015 ● 888-523-3265
SIMPLE & EASY
DIP SWITCH
CONFIGURATION
OF EQUIPMENT
TYPE & SETTINGS
CONTROL ANY
24V SINGLE OR
MULTI-STAGE
EQUIPMENT
OPTIONAL
SUPPLY TEMP
SENSOR
[PART# ASAS]
FOR IMPROVED
EQUIPMENT
PROTECTION &
SMART-STAGING
COMPREHENSIVE
DISPLAY SHOWS
MODES, STATUS
& MORE
(PRESS BUTTON)
USE ANY 2 OR 3
WIRE 24VAC
DAMPER
GREEN = OPEN
SMARTZONE-2L
®
2 - Z O N E
U N I V E R S A L
FAN
(ONLY)
G
HEATING
(2
nd
STAGE)
GAS/ELECT HEAT PUMP
W1 Y1
W2 Y2
G G
B**
EMERGENCY
HEAT
AUXILIARY
HEAT
PURGE
/ CHANGEOVER
DELAY
GAS/ELECT HEAT PUMP
W1 Y1
G G
B**
HEATING
(1
st
STAGE)
NORMAL DUAL FUEL
Y1 W1
Y2 G
W1
G
B**
*NOTE: “O” WILL
ENERGIZE FOR HEAT
PUMP IF DIP SWITCH
#2 IS SET TO “O”
COOLING
(2
nd
STAGE)
Y1
Y2
G
O*
COOLING
(1
st
STAGE)
DISPLAY INFORMATION
BLUE TEXT APPLIES ONLY TO HEAT PUMP
EQUIPMENT (DIP SWITCH #1)
OPTIONAL SUPPLY TEMP
SENSOR (ASAS) REQUIRED
FOR SMART-STAGING &
EQUIPMENT LIMITS
Y1
G
O*
3 MINUTE MINIMUM
OFF TIME FOR
EQUIPMENT.
DURING DELAY ALL
DAMPERS OPEN.
EQUIPMENT
OUTPUT
STAGE
TIMING
8min
GAS/ELECT
HEAT PUMP
TEMP
LIMITS
CUT OUT:
SUPPLY TEMP <
LOW TEMP
CUT IN:
SUPPLY TEMP >
LOW TEMP + 10°
CUT OUT:
SUPPLY TEMP <
LOW TEMP + 4°
CUT OUT:
SUPPLY TEMP >
HI TEMP
CUT IN:
SUPPLY TEMP <
HI TEMP - 25°
CUT OUT:
SUPPLY TEMP >
HI TEMP - 10°
CUT IN:
SUPPLY TEMP <
HI TEMP - 15°
CUT OUT:
SUPPLY TEMP >
HI TEMP - 5°
CUT IN:
SUPPLY TEMP <
90°
CUT OUT****:
SUPPLY TEMP >
100°
****NOTE: FOR DUAL
FUEL “CUT OUT” WILL BE
GAS/ELECTRIC HI TEMP
AFTER 2
ND
STAGE***
IF EACH ZONE THERMOSTAT IS CALLING FOR A DIFFERENT MODE (HEAT & COOL),
SMARTZONE-2L WILL INITIATE A PURGE/CHANGEOVER AFTER 15 MINUTES OF
CONTINUOUS RUN TIME IN ONE MODE. DURING PURGE (3 MINUTES), THE
EQUIPMENT FAN (G) WILL RUN AND THE LAST CALLING ZONE DAMPERS WILL
REMAIN OPEN. AFTER THE PURGE, THE EQUIPMENT WILL ENERGIZE IN THE NEW
MODE AND THE CORRECT DAMPERS WILL OPEN AND CLOSE. THIS WILL OCCUR
EVERY 15 MINUTES UNTIL CALLS ARE SATISFIED.
FLASHING
FLASHING
TEMPERATURE LIMIT
LO TEMP
(COOL LIMIT)
HI TEMP
(HEAT LIMIT)
FLASHING
IF NO TEMP SENSOR
INSTALLED, STAGING
WILL BE BASED ON
TIME ONLY
TEMP
SENSOR
“● BLINK = NO TEMP
SENSOR
CONNECTED
● ON = SENSOR
CONNECTED
● EMERGENCY HEAT CAN ONLY BE OPERATED BY A HEAT PUMP THERMOSTAT CONNECTED TO THE ZONE 1
THERMOSTAT “W” TERMINAL. WHEN ZONE 1 THERMOSTAT CALLS FOR EMER. HEAT, THE SMARTZONE
SYSTEM WILL BE LOCKED INTO EMERGENCY HEAT.
● WHEN IN EMERGENCY HEAT, THE COMPRESSOR WILL NOT ENERGIZE. HEATING CALL FROM ZONE 2 WILL
BE TREATED BY THE SMARTZONE SYSTEM AS EMER. HEAT TO THE EQUIPMENT (INCLUDING W OR Y CALL
FROM ZONE 2) AND COOLING CALLS FROM ZONE 2 WILL BE IGNORED
● TO UNLOCK EMER. HEAT, MAKE A CALL FOR COMPRESSOR (NORMAL HEAT OR COOLING) CALL ON ZONE 1
THERMOSTAT
● PRESS THE BUTTON TO SEE “L E H” SCROLL ON THE DISPLAY (LOCKED EMERGENCY HEAT) BEFORE
THERMOSTAT MODES & SUPPLY TEMP
EH
G
***NOTE: WHEN NO TEMP SENSOR IS
INSTALLED, ZONE 1 & 2 THERMOSTATS
CONTROL AUX HEAT (WILL NOT
AUTOMATICALLY STAGE)
USE ANY 24V
THERMOSTAT
8min
4min
2min
3min
** NOTE: “B” WILL
ENERGIZE FOR HEAT
PUMP IF DIP SWITCH
#2 SET TO “B”
P # Z S 2 L - T
INCLUDES TEMP SENSOR
C O N T R O L
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