heat-timer SQ-Elite-EXt, Инструкция по установке и эксплуатации

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34 Heat-Timer Corp.
• Manual Valve - The SQ-Elite-MV will only control the motorized valve if the valve was set to Auto. Check to see if the valve is set
to On. See Valve on page
30
.
• Gain - View the MOV Sensor history, if the temperature tends to oscillate, reduce the Gain. See Gain on page
2
7
.
• Sensor Fault - If MOV Sensor Fault is set to Valve Open and the Outdoor or MOV System sensor reads
Short
or
Open
, the
SQ-Elite-MV will change the MOV Target to the Maximum Water temperature or open the valve. Check the Outdoor and MOV
System Sensor readings. See MOV Sensor Fault on page
2
1
.
too little seQ Heat
Check if the control has any of the following:
• Reset Ratio and Offset - If reduced heat occurs only in certain weather conditions, adjust the SEQ Reset Ratio and Offset (See
Understanding Operating Concept on page
5
). If it occurs year round, increase the SEQ Offset. See SEQ Offset on page
2
3
.
• Setback and Day/Night Schedule - If reduced heat occurs during Night hours, reduce the SEQ Setback setting. See SEQ Setback
on page 28
. If the building takes a long time to recover from the Night period, increase the SEQ Boost or Boost Period. See SEQ
Boost on page 28.
• Boiler Mode Settings - If the decreased heat occurs under extreme cold weather conditions, check if any boiler Mode is set to Off,
or Standby. The SQ-Elite-MV will only sequence boilers their mode is set to Auto or Standby. See Boiler Mode on page 3
2.
• Sensor Fault - If SEQ Sensor Fault is set to Stages Off and the Outdoor or SEQ System sensor reads
Short
or
Open
, the
SQ-Elite-MV will change the SEQ Target to the Minimum Water temperature or de-energize all boiler stages. Check the Outdoor
and SEQ System Sensors. See SEQ Sensor Fault on page
2
0
.
too little MoV Heat
Check if the control has any of the following:
• Reset Ratio and Offset - If reduced heat occurs only in certain weather conditions, adjust the MOV Reset Ratio and Offset (See
Understanding Operating Concept on page
5
). If reduced heat occurs year round, increase the MOV Offset. See MOV Offset on
page 2
3
.
• Setback and Day/Night Schedule - If reduced heat occurs during Night hours, reduce the MOV Setback setting. See MOV
Setback on page 28
. If the building takes a long time to recover from the Night period, increase the MOV Boost or Boost Period.
See MOV Boost on page 28.
• Gain - View the MOV Sensor history, if the temperature tends to hover below the MOV Target, increase the Gain. See Gain on
page 2
7
.
• Sensor Fault - If MOV Sensor Fault is set to Valve Close and the Outdoor or MOV System sensor reads
Short
or
Open
, the
SQ-Elite-MV will change the MOV Target to the Minimum Water temperature. Check the Outdoor Sensor. See MOV Sensor Fault
on page 2
1
.
no Heat
Check if the control has any of the following:
• Season
- If the Season is set to Summer, all boiler stages will be off and the motorized valve will be closed. See Season on page 22.
• Sensor Fault - If SEQ or MOV Sensor Fault is set to Valve Close or Stages Off and the respective system sensor reads
Short
or
Open
, the boilers might all be off on the SEQ System Sensor fault. Or, the motorized valve will be closed on a MOV System
Sensor fault. See SEQ Sensor Fault on page 2
0
and MOV Sensor Fault on page 2
1
.
• Shutdown - If External Input 1 is configured as a Shutdown and the terminals were shorted/activated, all stages will be off and the
motorized valve will close. See External Input 1 on page 19
.
• SEQ Tstat - If External Input 1 is configured as a SEQ Tstat and the terminals were Open/deactivated, all stages will be off. See
External Input 1 on page 19
.
• MOV Tstat - If External Input 2 is configured as a MOV Tstat and the terminals were Open/deactivated, the motorized valve will
closed. See External Input 2 on page
19
.
• Prove - If External Input 2 was set as SEQ Prove and no wiring is attached to the Prove terminals all boilers will be off. See
External Input 2 on page
19
.
• Manual Valve - The SQ-Elite-MV will only control the motorized valve if the valve was set to Auto. Check to see if the valve is set
to Off. See Valve on page
30
.
• Boiler Mode Settings - Check if any boiler Mode is set to Off, or Standby. The SQ-Elite-MV will only sequence boilers their mode
is set to Auto or Standby. See Boiler Mode on page 3
2.