Operating instructions

17
SET HEAT VALVES
The SET HEAT VALVES mode is used to set the criteria for any modulating heat valves in use. In the event that
hot water valves are in use, the total opening time is set here. In addition, the run and wait times for the valves,
the hot water differential, and the minimum and maximum hot water temperatures are entered here. If a reference
temperature is being used to control the hot water temperature, the minimum and maximum reference
temperatures are also entered here. If a zone temperature activates the hot water system, the differential is
entered here. If a zone pump is in use, the system timing for that zone pump is also entered here. If a pulsed
opening hot water system is used the number of stages, the positions, opening time, delays, separation and
differentials is set here.
1. Enter the SET HEAT VALVES mode.
2. Use the PRIOR-NEXT switch to advance to the desired item to set.
3. Use the VALUE switch to toggle between desired choices that the system has internally provided.
Hot Wtr 1
Open Time (1:00)
Set the time for the valve to travel from fully open to fully closed. You will need to time the valve for operation.
Hot Wtr 1 Time
Run (10) Wait (30)
Set the desired run and wait times for the hot water valve. The PROCOM will use these times to pulse the valve by
applying the run time and then waiting for the duration of the programmed wait time before pulsing it open again.
These times will apply to either opening or closing of the valve.
Hot Wtr 1
Dif. (2)
o
F
Set the desired differential of the hot water valves. The differential is the amount of temperature change that the
sensor must see before operating the hot water valve.
Min Water (100)
o
F
Max Water (180)
o
F
Enter the minimum and maximum water temperatures that you want the system to maintain. The control will then
try to maintain these “target” temperatures. If no reference temperature is being used, only enter a minimum
temperature setting here.
Min Refer (40)
o
F
Max Refer (60)
o
F
If a reference temperature is being used, enter the minimum and maximum reference temperature here. The heat
valve program can use a reference temperature such as a zone air temperature, or outdoor temperature to control
the heat valve. The PROCOM will automatically calculate the temperature differences and proportion the heat
valve accordingly.
Hot Wtr 1
Zone Dif (4)
o
F
If a zone pump is being used with your hot water valve, set the desired temperature differential here. The
differential is the amount of temperature rise that the zone sensor must see before turning off the zone pump. If a
zone pump is not is use, you may ignore this setting.
Zone Pump
Timing (2) Sec.
If a zone pump is being used set the desired time delay here. The time delay will be active on both energizing and
de-energizing the zone pump.