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heat-timer SQ-Elite-MV Installation And Operation Instruction Manual

Hydronic boiler sequencing with motorized valve control
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• InstallatIon and operatIon InstructIons Manual
sQ-elite-MV & sQ-elite-eXt
HydronIc BoIler seQuencIng wItH
MotorIzed ValVe control
for HydronIc HeatIng systeMs
PWR
L N
1 2
the sQ-elite-MV is strictly an operating control. It cannot be used as a limit control. all boilers must have
all safety and limit controls required by code. It is the responsibility of the installer to verify that all the safety
and limits are working properly before the sQ-elite-MV is installed.
this control must be installed by a licensed electrician.
• user operatIons Manual
Stage A
Stage E
Stage B
Stage F
Stage C
SEQ SYS
Stage D
DHW PUMP
OUTPUT RATING: 2A, 120VAC.
MAXIMUM 15A TOTAL FOR ALL CIRCUITS
INPUT RATINGS: 120VAC 60Hz, 12VA MAX
CAUTION:
Risk of Electric Shock.
Use Copper Conductors Only.
SEQ
Stage A
Stage B
Stage C
Stage D
Stage E
Stage F
SYS
3
4
5
6
7
8
9
10
11
12
13
14
15
SQ-Elite-MV
SEQUENCING CONTROL
SEQ=
OD=40F
MOV SYS
SEQ TGT =140F
MOV TGT =130F
MOV CLOSE
<AB >
MOV OPEN
HI
C
US
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
LISTED
99RA
PROGRAM
RUN
MOV
MOV
DHW
MOV
DHW
CLOSE
OPEN
PUMP
SYS
16
18
17
19
20
21
22
23 24
25
warnIng
R
138
128
F MOV=
F
RTN=122F
DE
GH
LO
--
DO NOT APPLY ANY VOLTAGE
TO INPUT TERMINALS
SENSORS MUST BE GOLD SERIES
SHUTDOWN
SEQ
Outdoor
Return
MOV
SEQ PROVE
/TSTAT
Temp
Temp
Temp
Temp
/MOV TSTAT
/SETBACK
26
27
28
29
30
31
32
33
34
35
36
37
38
RS485

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Summary of Contents for heat-timer SQ-Elite-MV

  • Page 1 It cannot be used as a limit control. all boilers must have all safety and limit controls required by code. It is the responsibility of the installer to verify that all the safety and limits are working properly before the sQ-elite-MV is installed.

  • Page 2: Table Of Contents

    ....3 SEQ and MOV Minimum Target ....24 SEQ and MOV Maximum Target.

  • Page 3: Sq-Elite-Mv Layout

    SQ-Elite-MV & SQ-Elite-EXT Installation Manual sQ-elIte-MV layout Program Switch to restrict access to function changes. This Switch is covered with Enclosure Wiring Cover. Press any button to display the Button LEDs indicate Function at the bottom row. associated relay’s status...

  • Page 4: Sq-Elite-Mv Overview

    As a stand-alone, the SQ-Elite-MV is designed to control six stages. However, it has the capability of expanding its control to two extension panels each with eight stages. Thus, the SQ-Elite-MV can control a total of up to 22 stages. It controls not just all the stages, but their pumps or valves, in addition to the secondary loop motorized valve and pump to maintain a precise system set point for each of the primary and secondary loops.

  • Page 5: Understanding Operation Concept

    This means that for each degree the outdoor temperature dropped the water temperature 120° Water Temperature. will increase 2 degrees. The SQ-Elite-MV has a full range of Reset Ratios to match any buildings heat loss characteristics. A heating curve that relies not only on Outdoor temperature but also on type of radiation +20 Offset will improve heat comfort.

  • Page 6: Make Sure You Have The Right Control

    Make sure you HaVe tHe rIgHt control If you need the SQ-Elite-MV to do additional tasks that either are not listed or do not know how to configure them, contact Heat- Timer Corp. Sales Department either by Phone (973)575-4004, Fax (973) 575-4052, or by E-mail support@heat-timer.com.

  • Page 7: Installation

    • Rotating the lead boiler to be activated on a call for output promotes even wear on all boilers. The SQ-Elite-MV has three modes of rotation: Manual, First-On-First-Off, or Timed Rotation. This option automatically rotates boilers every selected time period from one hour to every 41 days (999 hours) .

  • Page 8: Install The Sensors

    System loop return line. outdoor sensor InstallatIon Outdoor Sensor • Only use the Heat-Timer sensor included with the unit (HT# 904220-00). • Locate the sensor in the shade on the north side of the building. The sensor should never be in direct sunlight.

  • Page 9: Wiring Inputs

    (terMInals 31, 32) optIonal • If the Return Sensor is connected, must be purchased separately, the SQ-Elite-MV will recognize it and show its temperature on the display. If the Return is below the Minimum Return, the SQ-Elite-MV will sequence stages based on the Return Sensor, Minimum Return, SEQ Target, and the actual SEQ System Temperature.

  • Page 10: Wiring The Domestic Hot Water Input

    See External Input 1 on page 19. • This feature can be used whenever it is desirable to turn off the SQ-Elite-MV stage as well as close the motorized valve from a remote location or another controller (i.e. EMS input).

  • Page 11: Wiring Outputs

    • This feature can be used whenever it is desirable to activate the motorized valve loop from a remote location or another controller (i.e. Thermostat). • When the Tstat feature is enabled by closing a dry-contact, the SQ-Elite-MV will modulate the motorized valve to achieve the desired MOV Set Point.

  • Page 12: Wiring The Stages

    4-20Ma eMs Interface • The SQ-Elite-MV is equipped with a 6-pin phone socket to connect to SQ-Elite-EXT Extension panels or 4-20mA EMS Interface. • Only the 6-wire phone cable provided must be used for proper operation.

  • Page 13: Startup Settings

    EMS Signal startup settIngs prograM cHange settIngs • To be able to change the SQ-Elite-MV settings the Program/Run Switch must be set to PROGRAM Program. The switch is located under the Enclosure Wiring Cover for security. The Enclosure Wiring Cover can be securely closed using a padlock.

  • Page 14: Installer Menu Sequence

    EMS 20mA SET POINT --- CONTROL LOGIC--- <Configuration> 170 F BACK SELECT BACK SAVE BACK SAVE SQ-Elite-MV V1.00 SEQ Set Point MOV Outdoor reset ------ SEQUENCE ------- 4-20mA ->100 F-170 F ---- DHW PIPING --- Lo/Hi/Lo/Hi DHW Parallel Parallel Lo/Lo/Hi/Hi...
  • Page 15 SQ-Elite-MV & SQ-Elite-EXT Installation Manual SEQ= F MOV= --- SEQ SETTINGS --- OD=40 F RTN=122 F Set Point 140 F seQ Menu SEQ TGT=140 F EMS Set Pnt 140 F MOV TGT=130 F <Outdoor Rst> 140 F <AB> Min Return <System Settings>...
  • Page 16 Heat-Timer Corp. SEQ= F MOV= OD=40 F RTN=122 F ------ SETTINGS ------ --- SEQ SETTINGS --- SEQ TGT=140 F Season Winter Set Point 140 F MOV TGT=130 F <SEQ Settings> EMS Set Pnt 140 F <AB> <MOV Settings> <Outdoor Rst> 140 F <Maintenance>...
  • Page 17 SQ-Elite-MV & SQ-Elite-EXT Installation Manual MotorIzed ValVe SEQ= F MOV= OD=40 F RTN=122 F ------ SETTINGS ------ Menu page 27 SEQ TGT=140 F Season Winter MOV TGT=130 F <SEQ Settings> <AB> <MOV Settings> <Maintenance> <System Startup> BACK SELECT ---- SET POINT ----...

  • Page 18: Seq Control Mode

    SEQ Outdoor Cutoff point. That is, to turn the stages, stage pumps or valves, and SEQ System relays off. • The EMS 4-20mA allows the SQ-Elite-MV to receive an external SEQ Set Point from an EMS/BMS system. This option requires the use of the 4-20mA EMS Interface (HT# 926741-00).

  • Page 19: Dhw Pump Output

    • The Valve option functions similar to the pump option except that when all SQ-Elite-MV stages are off and after Run-On delay has elapsed, the Lead boiler's valve relay will remain energized to allow for flow across the system. The lead boiler's valve will remain energized until the Outdoor temperature rises above the SEQ Outdoor Cutoff or the Shutdown or Summer is activated.

  • Page 20: Sequence

    Mode • When Stages-On is selected, the SQ-Elite-MV will turn all boiler stages On when the SEQ System reads Short or Open and the outdoor temperature is below SEQ Outdoor Cutoff. However, if the outdoor temperature is above the Outdoor Cutoff, the Outdoor Cutoff will take over turn off the stages.

  • Page 21: Mov Sensor Fault

    Mode • If Valve Close is selected, the SQ-Elite-MV will energize the MOV Close relay when the SEQ System sensor reads Short or Open. • If Valve Open is selected, the SQ-Elite-MV will energize the MOV Open relay when the MOV System sensor reads Short or Open.

  • Page 22: Operating Settings

    Hold Button: MENU/Season SQ-Elite-MV when in Summer. • The SQ-Elite-MV will turn all boiler relays off when it is in Summer setting. In addition, If you do so, the battery will the motorized valve MOV Close relay will energize for 6 minutes to guarantee valve run down and will have to be closure.

  • Page 23: Seq And Mov Target Offset

    • When the outdoor temperature rises to the Outdoor Cutoff plus a 2°F differential, the SQ-Elite-MV will turn all boilers off and close the motorized valve. The System relay and any other stage pump or valve relays that were energized will remain energized for the Run-On delay.

  • Page 24: Seq And Mov Minimum Target

    • The SQ-Elite-MV will use that value as a guide. It will start to add additional stages if it foresees that the RTN temperature will drop below the Min. Return. During that period, it will display "Hold Return at 120 F" in the Display Message Line to indicate that the SQ-Elite-MV is sequencing boilers to protect the return from dropping below the Minimum Return.

  • Page 25: Seq Settings

    Hold Button: MENU/<SEQ Settings>/<System Settings>/<Stage Settings>/Reaction time 2min • It is the amount of time it takes a single stage to affect the system. • After the SQ-Elite-MV turns on a stage trying to meet a set point, it will not turn on another BACK SAVE stage until the reaction time has elapsed.

  • Page 26: Last Stage Hold

    • When the SQ-Elite-MV brings on the Lead Stage, the Set Point is quickly exceeded, and the Lead Stage is turned off. To prolong the run time during this type of condition, use the Last Stage Hold setting.

  • Page 27: Lead Settings

    SELECT it will turn off A, B, Then C. Then stage D will be the new lead for the next load. MoV settIngs The MOV settings affects how the SQ-Elite-MV controls the motorized valve operation. gaIn -------- GAIN -------- Adjustable from -10 to 10 Default: 0 Hold Button: MENU/<MOV Settings>/<System Settings>/Gain...

  • Page 28: Setback Schedule

    Hold Button: MENU/<SEQ Settings>/<SEQ System Settings>/Setback • The Setback feature can be used to provide the SQ-Elite-MV with a lower temperature Set Point when less load is required. • The new Set Point will appear on the main display indicating this condition "Setback to 160 F". For example, if the calculated temperature is 180°F and the Setback is 20°F, then when in Setback, the SQ-Elite-MV will hold a Set Point of 160°F.

  • Page 29: Dhw Settings

    If hours are to be set to PM, scroll through the AM hours to reach the PM hours. • Remember that the battery is the backup for the Time. If no power is supplied to the SQ-Elite-MV, the battery will die in three months and time clock values will be lost and will need to be reset.

  • Page 30: Maintenance

    Buttons The SQ-Elite-MV display layout provides a variety of information that gives an immediate picture of the operation status. The display shows a maximum of four heating boilers at a time. Each boiler is displayed as multiple letters indicating the stages on the boiler.
  • Page 31 Boiler Valves are being controlled by the SQ-Elite. See Boiler Output on page 19. dIsplay Messages The SQ-Elite-MV normal display layout reserved the second and third lines for message indications. The following is a list of the most common Message Display Line information: SEQ Messages •...

  • Page 32: Stage Settings

    Auto - The SQ-Elite-MV will control the boiler operation to maintain the desired Set Point. Only boilers set to Auto can be Lead. Standby Standby boilers can only be activated when all boilers in Auto have been at HI for an adjustable Standby delay period. A boiler can be set to Standby if needed to be available in extreme load conditions.

  • Page 33: Troubleshooting

    • S ensor Fault - If SEQ Sensor Fault is set to Stages On and the Outdoor or SEQ System sensor reads Short or Open, the SQ-Elite-MV will change the SEQ Target to the Maximum Water temperature or turn all boiler stages on. Check the Outdoor and SEQ System Sensors.
  • Page 34 Heat-Timer Corp. • M anual 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. • G ain - View the MOV Sensor history, if the temperature tends to oscillate, reduce the Gain. See Gain on page 27.
  • Page 35 21 and 22 and across terminals 23 and 24. The meter should register continuity across terminals 21 and 22 and should register no continuity across terminals 23 and 24. Otherwise, the SQ-Elite-MV may be damaged. Then, set the Valve mode to Open and check for continuity across terminals 23 and 24 and across terminals 23 and 24..

  • Page 36: Mechanical And Electrical Diagrams

    Heat-Timer Corp. MecHanIcal and electrIcal dIagraMs...
  • Page 37 SQ-Elite-MV & SQ-Elite-EXT Installation Manual...
  • Page 38 Heat-Timer Corp.
  • Page 39 SQ-Elite-MV & SQ-Elite-EXT Installation Manual...

  • Page 40: User Menu Sequence

    <MOV Settings> BACK SELECT DO NOT turn power off to the SQ-Elite-MV when in Summer. If you do so, the battery will run down and will have to be replaced. ----- SET POINT ----- Instead switch to Summer. 170 F...

  • Page 41: User Settings

    Set Point Temperature. No season information will be displayed. • When the Winter is over, it is a good practice to switch the SQ-Elite-MV Season setting to Summer. This will allow DHW calls to operate the boilers when needed as well as preserve the battery life.

  • Page 42: Seq And Mov Customized Reset Ratio

    Outdoor Cutoff menu option will automatically appear. • When the outdoor temperature falls to the adjustable Outdoor Cutoff temperature, the SQ-Elite-MV will control the outputs, whether those outputs are multiple boiler stages or a motorized valve, to hold the calculated temperature.

  • Page 43: Setback Schedule

    SQ-Elite-MV & SQ-Elite-EXT Installation Manual • When the outdoor temperature rises to the Outdoor Cutoff plus a 2°F differential, the SQ-Elite-MV will turn all boilers off and close the motorized valve. The System relay and any other stage pump or valve relays that were energized will remain energized for the Run-On delay (adjustable in Installer Menu only).

  • Page 44: Specifications

    ......Two RS485 20 new dutch lane, fairfield, nj 07004 973-575-4004 • fax 973-575-4052 • http://www.heat-timer.com C O R P O R A T I O N 059077-00 Rev.A...

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Sq-elite-ext

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