SYX66x Commissioning Guide
V1.10.3 300117
Page 29 of 61
Space Night Set point
16°C
5°C
– 50°C
The space temperature below which
night setback mode control operates.
(Used only with Night Setback Mode)
Building Warm Up
Rate
1.5
0.5 to 10
°C/Hour
Calculated rate of room temperature rise
for the building when heating is first
turned on
Parameter
Default
Range
Description
Building Cool Down
Rate
0.5
0.1 to 10
°C/Hour
Calculated rate of room temperature fall
for the building when heating is turned off
Space Influence
3°C
0°C
– 20°C
(for every 1°C in room
error)
This will cause the +/- adjustment of the
calculated compensated flow
temperature set point for each 1°C error
in space temperature.
Outside High
Set point
18°C
10°C - 50°C
Turns off heating if outside air temp goes
above this value. Turns back on 1°C
below this value.
Outside Frost Set
point
2°C
-10°C
– 35°C
If outside temperature falls below the
Outside Frost limit, the valve will be
opened and the heating pump will switch
on.
Pump Run On
15 mins
0
– 60 minutes
Pump overrun time period.
Setting to 0 will disable overrun for next
event
VT Valve Time (0 to
100%)
120s
10 to 600s
Time for the valve to move from closed to
open (seconds)
HWS Primary
Set point
82°C
0 to Boiler High Value
Set point issued to the boilers when the
HWS is in demand for heat and the boiler
linked option is made
Rotate Boilers
Disabled
Enabled - Disabled
Allows the controller to rotate the lead
boiler on a weekly basis.
If enabled, users can manually rotate the
lead boiler using the Sequence option in
Boilers Switch Menu
Number of Boilers
1
1
– 2
Sets the number of boilers or stages to
be controlled.
BPRO Used
No
Yes - No
Select YES if using a BPRO sequencer
from the 0-10v Output
