Mode 4 & 5: Outdoor Reset Operation: View Display - Camus Hydronics MFH060 Installation, Operation And Service Manual

12.6 MODE 4 & 5: OUTDOOR RESET OPERATION: VIEW DISPLAY
Mode 4 is intended for hydronic heating. The set-point for inlet water control is pre-set to 180°F and the
auto re-set limit is set to 230°F. The inlet set-point can be adjusted, however the limit is fixed. In addition to
the auto reset limit the factory installs a manual re-set limit set to 250°F. The control turns on the appliance
pump and stages the appliance to maintain outdoor reset target temperature at the appliance inlet
temperature whenever an external heat demand is present. Once the external heat demand is removed,
the control turns off the appliance and operates the appliance pump based on the purge feature.
Mode 5 is intended for hydronic heating. The set-point for inlet water control is pre-set to 180°F and the
auto re-set limit is set to 230°F. The inlet set-point can be adjusted, however the limit is fixed. In addition to
the auto reset limit the factory installs a manual re-set limit set to 250°F. The control turns on the appliance
pump and stages the appliance to maintain outdoor reset target temperature at the system temperature
whenever an external heat demand is present. Once the last appliance stage turns off and the heat
demand is still present, the control then operates the appliance pump based on the purge feature. In this
case, it is imperative that the system pump operates continuously in order to provide constant circulation
past the system sensor. The appliance pump then turns back on with the first stage of the appliance. If the
heat demand is removed, the appliance is turned off and the control operates the appliance
From the Home display;
1) Press [ITEM] to view the following parameters:
Display
Parameter
Name
Outdoor
Real-time Outdoor Temperature
Temperature
Boiler
System
Real-time System Temperature to
Temperature
Boiler
(Mode 5
ONLY)
Boiler Outlet
Real-time Outlet Temperature to Boiler
Temperature
Boiler Inlet
Real-time Inlet Temperature to Boiler
Temperature
Real-time temperature difference
Boiler Delta between the outlet sensor and the inlet
T sensor.
Monitors the amount of operational time since
the unit was installed. The first two digits are the
Total Run
number of thousands of hours and the three
digit display shows the number of hundreds of
Time Since
hours.
Installation
Press
counter
22
Parameter Description
simultaneously to reset the
Parameter
Range
o
-60 to 190 F
o
(-51 to 88 C)
o
14 to 266 F
o
(-10 to 130 C)
o
14 to 266 F
o
(-10 to 130 C)
o
14 to 266 F
o
(-10 to 130 C)
o
-99 to 252 F
o
(-72 to 140 C)
Alternates
between 00 and
999