heat-timer SQ-Elite-8S Installation And Operation Instruction Manual
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heat-timer SQ-Elite-8S Installation And Operation Instruction Manual

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• InstallatIon and operatIon InstructIons Manual
sQ-elite-8s & sQ-elite-eXt
steaM seQuencIng control
For steaM HeatIng systeMs
PWR
L N
1 2
the sQ-elite 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 is installed.
this control must be installed by a licensed electrician.
• user operatIons Manual
Stage A
Stage E
Stage B
Stage F
Stage C
Stage G
Stage D
Stage H
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.
Stage A
Stage B
Stage C
Stage D
Stage E
Stage F
Stage G
3
4
5
6
7
8
9
10
11
12
13
14
15
SQ-Elite-8S
SEQUENCING CONTROL
13
PSI
SYS
<AB>
AUX OUT
HI
COMB. AIR
C
US
ENCLOSED
ENERGY
MANAGEMENT
EQU PMENT
LISTED
99RA
PROGRAM
RUN
System
AUX
COMB
Stage H
SYS
4 20mA
OUT
AIR
+
16
17
18
19
20
21
22
25
26
23 24
WarnIng
R
35
F
CD
EF
GH
LO
-- OFF
DO NOT APPLY ANY VOLTAGE
TO INPUT TERMINALS
SENSORS MUST BE GOLD SERIES
RS485
Auxiliary
Outdoor
Aux liary
Aux liary
SHUTDOWN
PROVE
/TSTAT
Input1
Temp
Input2
Input3
/SETBACK
27
28
29
30
31
32
33
34
35
36
37
38

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Summary of Contents for heat-timer SQ-Elite-8S

  • Page 1 • InstallatIon and operatIon InstructIons Manual • user operatIons Manual sQ-elite-8s & sQ-elite-eXt steaM seQuencIng control For steaM HeatIng systeMs SQ-Elite-8S SEQUENCING CONTROL Stage A Stage E <AB> Stage B Stage F AUX OUT -- OFF Stage C Stage G COMB.

  • Page 2: Table Of Contents

    ....3 Sequence ..... 16 Control Logic.

  • Page 3: Sq-Elite-8S Layout

    SQ-Elite-8S & SQ-Elite-EXT Installation Manual sQ-elIte-8s layout Program Switch to restrict access to function changes. This Switch is covered with Enclosure Wiring Cover. Button function is presented on LEDs indicate bottom row of the display. associated relay’s status SQ-Elite-8S SEQUENCING CONTROL...

  • Page 4: Sq-Elite-8S Overview

    (oss) logIc The SQ-Elite-8S’s control PID algorithm allows it to look at the rate of change in the system. If the system oscillation is minimal, the SQ- Elite-8S will make slow and gradual output adjustments. If the load is changing quickly, the SQ-Elite-8S can be set to OSS sequencing where it will react based on load changes.

  • Page 5: Understanding Operation Concept

    OSS is used in fast reacting application as in process applications, where maintaining a set point is critical. The OSS utilizes the Throttle setting, as a mean to calculate the number of stages the SQ-Elite-8S shall have on at any point. For every Throttle Range below the set point an additional stage shall be turned on/energized.

  • Page 6: Initial Setup

    • The SQ-Elite-8S can be configured to control up to eight stages. It can control up to 24 stages by adding a maximum of two SQ- Elite-EXT Extension Panels, each with eight stages. control coMbustIon aIr daMper •...

  • Page 7: Installation

    SQ-Elite-8S & SQ-Elite-EXT Installation Manual InstallatIon Each of the SQ-Elite and SQ-Elite-EXT consists of three primary enclosure components. • T he Enclosure Display Module: contains the display, buttons, LEDs, and electric wiring terminals. It has two screws to hold it to the base. A program configuration switch, used to adjust SQ-Elite settings, is placed above the terminals. This switch is enclosed with the Enclosure Wiring Cover for security.

  • Page 8: Install The Sensors

    2 voltage. alert If the System Sensor cannot sense the correct system pressure being supplied to the building, the SQ-Elite-8S will not provide comfortable heat levels. Be sure that it is located on the main supply header before any takeoffs.

  • Page 9: Wiring

    This feature will only be available when Shutdown is selected as the External Input Mode option from the Startup menu on page 15. • This feature can be used whenever it is desirable to turn off the SQ-Elite-8S stage outputs from a remote location, another controller (i.e. EMS input), or a switch. •...

  • Page 10: Wiring The T-Stat (Terminals 35, 36)

    15. • It can be used when it is desirable to switch the SQ-Elite-8S to operate in Setback from a remote location (i.e. EMS input or external time clock). No Day/Night scheduling options will be available with this feature.

  • Page 11: Wiring The Stages (Terminals 3 To 17)

    Stage C Stage D Stag • The SQ-Elite-8S can be configured to operate the stages of On/Off or multi-stage boilers. • The relays are N.O. dry contacts only. They do not source any voltage. • Wire the N.O. relay contacts in series with the boiler’s limit circuit.

  • Page 12: Installer Menu Sequence

    EMS 4mA SET POINT Lo/Hi/Lo/Hi <Configuration> 0 psi Lo/Lo/Hi/Hi BACK SELECT BACK SAVE BACK SAVE SQ-Elite-8S V1.00 ------ STAGING ------ Pressure 30psi EMS 20mA SET POINT Multiple Outputs EMS 4-20mA, Shtdown 30 psi Single Output 0psi - 30psi BACK SAVE...
  • Page 13 SQ-Elite-8S & SQ-Elite-EXT Installation Manual set poInt -- EMS SET POINT -- - OUTDOOR CUTOFF - -- REACTION TIME -- 10.0 psi 70 F 2min BACK SAVE BACK SAVE BACK SAVE ----- SET POINT ----- ---- SEASON --- --- PURGE DELAY ---- 10.0 psi...

  • Page 14: Startup Settings

    Vacuum 3in/762mm • The SQ-Elite-8S can accept a variety of pressure or vacuum transducers. This option BACK SAVE will allow the SQ-Elite-8S to utilize the proper sensor data based on the Sensor Type selected. dIsplay standard -DISPLAY STANDARD- English, metric Default: English...

  • Page 15: Combustion Air Damper Output

    Default: Yes Hold Button: MENU/<System Startup>/../Comb. Air Output • If Yes is selected, the SQ-Elite-8S will energize the Comb. Air relay whenever there is a BACK SAVE call for a boiler and will use the PROVE input to check on the status of the Combustion Air Damper.

  • Page 16: Sequence

    Shutdown was active, all stages will be Off on a sensor fault. • When Stages-On is selected, the SQ-Elite-8S will turn all stages On when the System sensor reads Short or Open. • When Stages-Off is selected, the SQ-Elite-8S will turn all stages Off when the System sensor reads Short or Open.

  • Page 17: Operating Settings

    • When the outdoor temperature rises to the Outdoor Cutoff plus a 2°F differential, the SQ-Elite-8S will turn all boilers off. The System and Comb. Air relays that were energized will remain energized for the Run-On delay then de-energize.

  • Page 18: Program Change Settings

    • When the SQ-Elite-8S activates a stage (the lowest stage on a boiler), it does not start to calculate its output until the Purge Delay is over. This allows the boiler to fully come on line and to begin producing output.

  • Page 19: Last Stage Hold

    The Last Stage Hold prevents short cycling of the Lead Stage during low load conditions where the system might have a load that is significantly less than the output of one stage. When the SQ-Elite-8S brings on the Lead Stage, the Set Point is quickly exceeded, and the Lead Stage is turned off. •...

  • Page 20: Lead Boiler

    The new Set Point will appear on the main display indicating this condition "Setback to 5 Psi". • For example, if the pressure set point is 8 Psi and the Setback is 3 Psi, then when in Setback, the SQ-Elite-8S will hold a Set Point of 5 Psi.

  • Page 21: Day/Night Schedules

    The SQ-Elite-8S controls multiple relays each controlling different types of equipment. In addition to the control of the boilers, it can control a combustion air damper. See Comb. Air Damper 15.

  • Page 22: System & Outdoor Sensor Trim

    The SQ-Elite-8S display layout provides a variety of information that gives an immediate picture of the operation status. The display shows four heating boilers at a time. The two middle buttons scrolls the screen to view additional boilers. Moreover, all the information is brightly displayed.

  • Page 23: Boiler Settings

    SQ-Elite-8S & SQ-Elite-EXT Installation Manual • The mid-high stage is active. Available in Four-stage boilers only. The Boiler Mode is set to either Auto or Standby. • The mid-low stage is active. Available in Four-stage boilers only. The Boiler Mode is set to either Auto or Standby.

  • Page 24: Runtime

    Heat-Timer Corp. runtIMe BOILER AB Runtime Clear 58hrs Button: BOILER/Runtime BACK CLEAR • The Runtime provides an accumulative hourly run for the selected boiler. • The Runtime for a specific boiler can be reset to zero by pressing the middle two buttons together.

  • Page 25: Troubleshooting

    S etback and Day/Night Schedule - If reduced heat occurs only during specific hours, check the Day/Night Schedule and the Setback value. • B oiler Mode Settings - The SQ-Elite-8S will only control boilers their mode is set to Auto or Standby. Check if any boilers have their Mode set to Manual, Off, or Standby. boilers are short-cycling •...

  • Page 26: User Menu Sequence

    • When in Winter, the SQ-Elite-8S will activate the System relay whenever the Outdoor temperature falls to or below the Outdoor Cutoff setting. In addition, it will begin heating whenever the System pressure falls below the Set Point. The Message Display...

  • Page 27: Set Point (Not Adjustable In Ems Mode)

    The new Set Point will appear on the main display indicating this condition "Setback to 5 Psi". • For example, if the pressure set point is 8 Psi and the Setback is 3 Psi, then when in Setback, the SQ-Elite-8S will hold a Set Point of 5 Psi.

  • Page 28: 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 059076-00 Rev.B...

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Sq-elite-ext

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