Jackson Systems Comfort System Z-300-HC User manual

Zone Control Made Simple™
5418 Elmwood Avenue, Indianapolis, IN 46203-6025
Toll Free: 888.652.9663 Fax: [phone]
www.jacksonsystems.com
Comfort System
Installation Instructions for Z-300-HC Zone Control Panel
Heat / Cool Auto Changeover - Cooling Priority
Installation Notes:
Connect only 24 Vac to Control
Panel.
Zone dampers are powered
closed / spring return open.
Specifications:
Terminal Designations:
To install the panel, first slide the PC
board out of its base and screw the
base to a flat surface next to the
HVAC equipment. The PC board
should be reinstalled by centering it
over the base and pushing firmly.
The control panel requires a
separate 24 Volt transformer.
No special wire is required.
The thermostat and motorized
dampers may be located up to 300
feet from the control panel when
using 18 gauge thermostat wire.
The left fuse (4 Amp) protects the
relay contacts. The right fuse (4
Amp) protects the printed circuit
board.
If condensing unit is not equipped
with short cycle protection timer,
(TD-5) should be installed.
The two wires from the condensing
unit should be connected to the ‘Y’
and transformer common terminals
at the furnace.
The low limit (FS-38) should be
wired to the ‘LL’ terminals on the
panel (remove jumper). The
compressor will shut off when low
limit trips out.
The high limit (HL-170) should be
wired to the ‘HL’ terminals on the
panel (remove jumper). The furnace
will shut off when high limit trips out.
A 40 VA transformer will power the
panel and up to four (4) dampers.
A 75 VA transformer will power the
panel and up to seven (7) dampers.
Up to three (3) dampers can be
connected in parallel. A total of no
more than seven (7) dampers may
be connected to the system. A
system may be a single panel or
multiple panels.
If more than three (3) zones are
required, two additional panels can
be used to control up to a total of
nine (9) zones. T5 terminal strip is
used only when more than three
zones are required.
Label the dampers, damper wires
and thermostat wires with the zone
number and the area they serve.
Panel Dimensions:
Height: 5.0 inches
Width: 10.0 inches
Depth: 2.0 inches
Mounting:
2 back plate screws
OperatingAmbient Temperature:
-20° to 160° F
Power Supply:
24 Vac 40VA/ 75 VA transformer
W = Heat
Y = Cool
G = Fan
R = Hot 24 Volt
X = Common
D = Damper
LL = Freeze Stat
HL = High Limit
H = Hot 24 Volt
X = Ground or Common
ZONE 1 ZONE 2 ZONE 3
CONTACTS
4 AMP FUSES
PC BOARD
COOLING
PRIORITY
POWER
HEAT
COOL
FAN
ZONE 1
CALLING
ZONE 2
CALLING
ZONE 3
CALLING
HVAC UNIT
WYG RXDD
WYG RXDD WYG RXDD
4 AMP
WYG R HXLL LL HL HL
T5
Comfort System™
Z-300-HC
PATENTED 5,944,098
4 AMP
WYG RC
WYG RC D
SINGLE STAGE
HEAT / COOL
THERMOSTAT
DAMPER MOTOR
0.36 AMPS 10 VA
HVAC UNIT
TERMINAL
STRIP
LOW
LIMIT
HIGH
LIMIT
120/24 VAC
TRANSFORMER
HXW Y G R LL LL HL HL
DD
WYG RX
WIRE THE SAME
AS ZONE 1
FAN LED INDICATES
WHEN A
THERMOSTAT IS
CALLING FOR FAN.
WHEN GREEN ZONE
LEDS ARE ON, THOSE
ZONES ARE CALLING
FOR HEATING OR COOLING
123456
JUMPERS
TM

Comfort System
Installation Instructions for Z-300-HC Zone Control Panel
Heat / Cool Auto Changeover - Cooling Priority
Zone Control Made Simple™
5418 Elmwood Avenue, Indianapolis, IN 46203-6025
Toll Free: 888.652.9663 Fax: [phone]
www.jacksonsystems.com
06-1015-021507
Sequence of Operation:
Thermostats:
Comfort System™ is a residential / light commercial zone
control system that allows a single HVAC unit to have up to
three separate zones (nine if three panels are connected
together). Each zone is controlled by its own space
thermostat and motorized zone damper. If any of the zone
thermostats call for heating or cooling, the zones not
calling will have their dampers powered closed, and the
zone(s) calling will have its (their) damper(s) remain open.
The heating or cooling equipment will also be brought on
at the same time. When all zone thermostats are satisfied,
the heating or cooling equipment turns off and all zone
dampers return to the open position to allow for continuous
air circulation.
If one of the zone thermostats is calling for heating and
another zone thermostat is calling for cooling, the cooling
thermostat will take priority and the system will operate in
the cooling mode. When the thermostat that is calling for
cooling is satisfied, the system will change over and take
care of the heating requirement. This is referred to as Auto
Changeover - Cooling Priority
The zone control system works with standard, single-
stage, heat / cool thermostats. The thermostats can be
either manual or auto changeover.
Verify that all wires have been connected to the proper
terminals and are secure.
Verify that the jumpers across the ‘LL’ and ‘HL’ terminals
were removed before connecting the high and low limits.
The low limit (FS-38) should be wired to the ‘LL’ terminals
on the zone control panel. The high limit (HL-170) should
be wired to the ‘HL’ terminals on the zone control panel.
Zone dampers are powered closed and spring return
open. There will be no power on the panel damper
terminals marked ‘D’ and ‘D’ when the damper is in the
open position.
ZONE DAMPER 2
MIGHT SERVE
BEDROOM AREA
ZONE DAMPER 1
MIGHT SERVE
LIVING AREA
ZONE 1
STAT
ZONE 2
STAT
COMFORT SYSTEM™
PANEL
24 VOLT 40VA
TRANSFORMER
FURNACE
Typical System Layout
When a green zone LED is on, the zone is calling for
heating or cooling.
To check the system for proper operation, pull the
disconnect for the condensing unit to prevent short
cycling. Next, place all the zone thermostat mode
switches in heat mode and turn down all thermostat set
points. Go to each zone thermostat, one at a time, and
call for heat to verify that the proper zone dampers are
open (and the rest are closed). Turn the zone
thermostat back down before checking the next zone.
System Checkout
TM