Startup And Checkout - Honeywell TrolaTemp MABS EZ-2 Product Data

MASTERTROL® AUTOMATIC BALANCING SYSTEM™ (MABS®) EZ ZONE (EZ-2 AND EZ-4) CONTROL PANELS
OPTIONAL ZoneMAX TM
OR C7735 SUPPLY AIR
TEMPERATURE
SENSOR
HVAC CONTROLS
SECOND STAGE COOLING RELAY
FIRST STAGE COOLING RELAY
REVERSING VALVE (COOLING)
24V TRANSFORMER (HOT)
FAN RELAY
REVERSING VALVE (HEATING)
FIRST STAGE HEATING
EMERGENCY HEAT RELAY
SECOND STAGE HEATING RELAY
THIS DIAGRAM SHOWS TYPICAL
SINGLE-STAGE THERMOSTAT
AND DAMPER MOTOR CONNECTIONS.
ZONE THERMOSTAT
ZONE DAMPERS

STARTUP AND CHECKOUT

After the installation is complete, verify the operation:
1. Put the Em Heat switch in the off (down) position.
2. Be sure the DIP switches are set correctly. See
Sequence of Operation and Table 6 for correct configu-
ration. The default position is in the off (down) position.
3. Power up the MABS EZ and set the thermostats so no
zones are calling. Verify that the board? enters the
Purge mode.
NOTE: During the two- or three and one-half- minute Purge,
the Purge LED should be amber. During this mode,
the dampers are open and the damper LEDs are
lighted green.
69-1360–2
HEAT COOL
ZoneMAX TM
TL
TL
Y2
Y1
O
R
G
B
W1
E
W2
2ND STG. EMG.
L G Y R W M6 M4 M1 L
THERMOSTAT MOTOR
ZONE 1
C G Y R W C
ZONE 1 THERMOSTAT ZONE 2 THERMOSTAT
4 5 6 7
1 2 3 X
AUTOMATIC ROUND DAMPER
OPPOSED BLADE POWERE CLOSED (ARD)
DAMPERMOTOR
Fig. 15. MABS EZ-4 wiring diagram.
PURGE FAN EM.HT ZONE 1
BOOT
OVERRIDE
G Y R W M6 M4 M1 L G Y R W M6 M4 M1
THERMOSTAT MOTOR THERMOSTAT
ZONE 2
G Y R W C G Y
ZONE 3 THERMOSTAT
4. Set the zone one thermostat to heat and raise the set-
point to call for heat. The Heat LED is red and the zone
one damper remains green while the other damper
LEDs turn off.
5. Lower the setpoint in zone one and raise the setpoint in
zone two to call for heat. Verify that zone one LED turns
off (also zones three and four turn off when used on
MABS EZ-4) and zone two damper is green.
6. When using a MABS EZ-4, repeat for zones three and
four and verify correct operation.
7. Alternately, the setpoint can be lowered to call for cool-
ing. Then the green cool LED lights.
8
ZONE 2 ZONE 3 ZONE 4
GRN - DAMPER OPEN/MOVING
OFF - DAMPER CLOSED
ON
1 2 3 4 5 6 7 8
PURGE
L G Y R W M6 M4 M1
MOTOR THERMOSTAT
ZONE 1 ZONE 2
R W C G Y R W
ZONE 4 THERMOSTAT
4 5 6 7
1 2 3 X
AUTOMATIC ROUND DAMPER
OPPOSED BLADE POWERE CLOSED (ARD)
DAMPERMOTOR
ON
OFF
TR2
TR1
MOTOR
C R
24V, 40 VA
TRANSFORMER
M19047A