Table of Contents
Advertisement
WIrIng
WIrIng tHe poWer (terMInals 1, 2)
•
Bring the 120VAC 60Hz power wires through the bottom Knockout of the enclosure.
•
Class 1 voltage wiring must use a different knockout and conduit from any Class 2 voltage wiring.
•
Connect the hot line to terminal marked L.
•
Connect the neutral line to the terminal marked N.
class 1 voltage wiring must use a different knockout and conduit from any class 2 voltage wiring.
Heat-timer recommends installing a surge suppressor on the power source to the sQ-elite.
WIrIng tHe Inputs
systeM pressure sensor WIrIng (terMInals 25, 26)
•
The SQ-Elite-8S is designed to be connected to a Heat-Timer Pressure or Vacuum sensor
located on the common header. Contact the factory for pressure sensor options.
•
Pressure sensor wires can be extended up to 500' by splicing shielded
2-conductor cable (Belden #8760 or equivalent).
•
Connect the Red wire to terminal 25 (+) and connect the Black wire to terminal 26 (-).
connect the temperature sensor shield at the control to terminal 30 marked with "o". do not
connect the shield at the sensor end.
outdoor sensor WIrIng (terMInals 29, 30)
•
Whether in Set Point or EMS 4-20mA modes, the outdoor sensor can be used as an Outdoor Cutoff. The
SQ-Elite will disable all boilers when the outdoor temperature is above the adjustable Outdoor Cutoff
temperature. This feature will automatically be activated when an outdoor sensor is connected.
•
For an outdoor sensor use a Heat-Timer outdoor sensor (HT #904220-00).
•
The sensor wires can be extended up to 500' using shielded 2-conductor cable (Belden #8760 or equivalent).
•
Temperature sensors have no polarity. Connect the wires from the outdoor sensor
to the SQ-Elite terminals marked OUTDOOR TEMP - 29, 30.
•
Connect the shield to the circled terminal 30 with one of the sensor
wires. Do not connect the shield at the sensor end.
WIrIng tHe sHutdoWn (terMInals 35, 36)
•
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.
•
When the Shutdown is enabled by closing a dry contact, all active stages will immediately turn off. The System
and Comb. Air relays will remain energized for the Run-On delay period and then turn off.
•
The Shutdown signal must be a dry contact input. No voltage can be placed across the SHUTDOWN terminals.
•
Bring the two wires from the dry contact to the terminals marked SHUTDOWN- 35,36.
•
When Shutdown is selected, Setback will be available using the programmed Day/Night schedule.
SQ-Elite-8S & SQ-Elite-EXT Installation Manual
WarnIng
WarnIng
9
PWR
L N
1 2
Sys em
Auxiliary
Outdoo
Aux liary
4 20mA
Inpu 1
Temp
Input2
+
25
26
27
28
29
30
31
32
3
Cut the Green,
White, and Clear
Tube
Connect
to 1/4" pigtail
Auxiliary
Outdoo
Aux liary
Inpu 1
Temp
Input2
27
28
29
30
31
32
Auxiliary
SHUTDOWN
PROVE
/TSTAT
Input3
SETBACK
33
34
35
36
37
38
Advertisement
Table of Contents
Need help?
Do you have a question about the SQ-Elite-8S and is the answer not in the manual?
Questions and answers