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SYNERGY3D INSTALLATION MANUAL
Microprocessor Control Operation
Heating Operation
Heat, 1st Stage (Y1)
The blower motor is started on low speed immediately, the
loop pump is energized 5 seconds after the “Y1” input is
received, and the compressor is energized on low capacity
10 seconds after the “Y1” input. The blower is switched to
medium speed 15 seconds after “Y1” input (ECM only).
Heat, 2nd Stage (Y1,Y2) Dual Capacity Units
The second stage compressor will be activated 5 seconds
after receiving a “Y2” input as long as the minimum first
stage compressor run time of 1 minute has expired. The
ECM blower changes from medium to high speed 15
seconds after the “Y2” input.
The Comfort Alert will delay the second stage compressor
until 5 seconds after it receives a “Y2” from the board.
Heat, 3rd Stage (Y1,Y2,W) Dual Capacity Units
The 1st stage of resistance heat is energized 10 seconds
after “W” input, and with continuous 3rd stage demand, the
second stage of resistance heat will engage after 5 minutes.
emergency Heat (W Only)
Low speed blower and damper output CR3 will be
energized immediately after receiving (W only). The first
stage auxiliary heater will be energized 10 seconds upon
receiving a (W only) and the blower will shift to high speed
15 seconds after receiving a “W” only input. If the “W” input
is not removed, the second, third, and fourth auxiliary heat
outputs will stage on, one at a time, every two minutes.
Cooling Operation
Cool, 1st Stage (Y1,O)
The blower is started immediately, and the loop pump(s)
is energized 5 seconds after the “Y1” input is received. The
compressor will be energized (on low capacity for Dual
Capacity units) 10 seconds after the “Y1” input. The ECM
blower will shift from low to medium speed 15 seconds
after the “Y1” input.
Cool, 2nd Stage (Y1, Y2, O) Dual Capacity Units
The second stage compressor will be activated 5 seconds
after receiving a “Y2” input as long as the minimum first
stage compressor run time of 1 minute has expired. The
ECM blower changes to high speed 15 seconds after the
“Y2” input. The Comfort Alert will delay the second stage
compressor until 5 seconds after it receives a “Y2” from the
board.
Hydronic Cooling Slave Signal (24 vac input on P6-
pin 15 violet wire)
The Synergy3D control board must be operating in cooling
mode (Y1 and O inputs) or the cooling slave signal is
ignored. When “Y1”, and “O” inputs have been received
and a cooling slave input from heating/cooling thermostat
located in a hydronic heated/force air cooled zone are
received the control will activate CR3 relay to open
damper(s) which will allow for cooling to occur in zone.
When cooling slave input (24VAC) signal is removed the
control will turn off the CR3 relay output, if spring damper
operation is selected, or activate, the CR4 output if POPC
damper operation is selected. This will close field installed
damper(s) located in ductwork.
NOTe:
The control will not operate in forced air cooling and
hydronic water heating modes simultaneously.
SW4 (Status Board Switch)
In the OFF position, the hydronic mode is disabled and
the damper connected to CR3/CR4 is opened. The switch
must be in the ON position to enable the hydronic mode.
NOTe:
If the status board is not connected to the MCB, the
hydronic mode is disabled.
Hydronic Operation
Over-ride time SW3-4 SW3-5
5 minutes
15 minutes
30 minutes
60 minutes
On
Off
On
Off
On
On
Off
Off
Over-Ride Selection
S
ta
tu
s
LE
D
P
C
B
17
P
50
3A
01
R
ev
A
SW4
R
R
R
R
R
G
Y
R
SW3 (4 and 5 Override Switches)
These DIP switches configure the time that the unit will
run in the current mode of operation if it is not the priority
mode (SW2 #3 FAH/Hydronics) of operation selected.
Example: If the unit is operating in hydronic mode, forced
air heat (SW2 #3 is OFF) is the priority. A Y1 call from the
FAH zone is present at the MCB. When SW3 numbers 4 and
5 are both in the ON position, the unit will operate in the
hydronic mode for five minutes. If the hydronic call is not
satisfied within the five minutes, the unit will switch to FAH
mode. When FAH is satisfied, the unit will switch back to
hydronic.
All manuals and user guides at all-guides.com
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