User Guide

ManualsBrandsSiemens ManualsControl MotorsGas Burner Control (120V, CCW)

CC1N7804en

25.04.2008

Building Technologies

HVAC Products

804

SQN70... / SQN71... SQN74... / SQN75...

Actuators

SQN7...

Reversible electromotoric actuators for air dampers and valves of oil or gas

burners of small to medium capacity.

The SQN7... and this Data Sheet are intended for use by OEMs which integrate

the actuators in their products!

Use and features

The SQN7... actuators are designed for driving gas or air dampers of oil or gas burners

of small to medium capacity, for load-dependent control of the fuel and combustion air

volume:

- In connection with P-PI or PID controllers, such as the RWF40...

- Directly via the different types of burner controls, such as LFL..., LME..., LMG...,

LMO..., LOA...

- In connection with 1- or 2-wire control or 3-position controllers

• All types of actuators

feature:

- Impact-proof and heat-resistant plastic housings

- Screw terminals for the electrical connections

- Maintenance-free gear train, which can be disengaged

- Internal position indication

- Easy-to-adjust end and auxiliary switches for adjusting the switching points

- Integrated electronic circuits

• Holding torque:

- SQN70... / SQN71... / SQN75...

- SQN74...

0.7...1.3 Nm

0.7 Nm

• Running time:

- SQN70... / SQN71... / SQN75...

- SQN74...

4...30 s

4 s

• Direction of rotation:

- SQN70... / SQN74...

- SQN71... / SQN75...

counterclockwise

clockwise

• SQN74... / SQN75...

- Fixing holes and cable entries

- Equivalent to actuators of the same category made by Conectron and Berger

Summary of content (22 pages)

PAGE 1
7 SQN70... / SQN71... 804 SQN74... / SQN75... SQN7... Actuators Reversible electromotoric actuators for air dampers and valves of oil or gas burners of small to medium capacity. The SQN7... and this Data Sheet are intended for use by OEMs which integrate the actuators in their products! Use and features The SQN7...
PAGE 2
Warning notes To avoid injury to persons, damage to property or the environment, the following warning notes should be observed! Do not interfere with or modify the actuators! • • • • • All activities (mounting, installation and service work, etc.) must be performed by qualified staff Before making any wiring changes in the connection area, completely isolate the plant from mains supply (all-polar disconnection). Ensure that the plant cannot be inadvertently switched on again and that it is indeed dead.
PAGE 3
Mechanical design Housing - Made of impact-proof and heat-resistant plastic The housing accommodates: – The reversible synchronous motor with gear train, which can be disengaged – The camshaft of the control section – The relays, depending on the type of actuator – The switches, connected to the terminals via the printed circuit board Color: SQN70... / SQN71...: SQN74... / SQN75...
PAGE 4
Type summary (other types of actuators available on request) Diagram No. Drive Running Nominal Holding AS shaft time torque torque 7) ¹) 2) 6) for 90° (max.) s Nm No. Nm Relay pcs. pcs. Pot. Length of Types for mains voltage / 9) 10) housing ¹) mains frequency AC 230 V 4) AC 115 V 3) +10 % -15 % +10 % -15 % mm 50...60 Hz 50...60 Hz SQN7... replaces type Actuators SQN70… / counterclockwise rotation 8) 2 0 4 1.5 0.7 2 2 --- 117 SQN70.224A20 --- --- 4 0 4 1.
PAGE 5
Type summary / cont’d (other types of actuators available on request) Diagram No. Drive Running Nominal Holding AS shaft time torque torque 7) ¹) 2) 6) for 90° (max.) s Nm No. Relay Nm pcs. pcs. Pot. Length of Types for mains voltage / SQN7... 9) 10) housing ¹) mains frequency replaces AC 230 V 4) AC 115 V 3) +10 % -15 % +10 % -15 % mm 50...60 Hz 50...60 Hz type Actuators SQN74... / counterclockwise rotation 8) 5 1 4 1,5 0,7 4 3 9) 115 SQN74.
PAGE 6
Ordering Actuator Potentiometer ASZ… refer to «Type reference» refer to Data Sheet N7921 refer to Mounting Instruction M7921 Mounting kit AGA70.3 - For mounting the SQN70... / SQN71... in place of the SQN3... - Fitted to the SQN70... / SQN71... with a self-tapping screw (included as standard) Cover - For SQN70… / SQN71… backfitting with potentiometer ASZxx.3x AGA34 6/22 Building Technologies HVAC Products CC1N7804en 25.04.
PAGE 7
Technical data General actuator data Actuator Mains voltage Mains frequency Drive motor Power consumption Angular adjustment Mounting position Degree of protection All types - SQN74... / SQN75... Safety class SQN70... / SQN71... SQN74... / SQN75... Cable entry SQN70... / SQN71... - SQN74... / SQN75... AC 230 V –15 % +10 % AC 115 V –15 % +10 % 50...60 Hz ±6 % Synchronous motor 6 VA Max. 160°, scale range 0...
PAGE 8
Technical data (cont’d) End and auxiliary switches Number of end switches Number of auxiliary switches Actuation 2 Refer to «Type summary» Via camshaft, color-coded cams (refer to «Connection diagrams») Switches with fine adjustment SQN70... / SQN71... : II and III SQN74... / SQN75... : III and IV AC 24...250 V Breaking voltage Adjustment of cams Without fine adjustment 1° With fine adjustment Infinitely Perm. amperage at cos ϕ = 0.9: (values in parentheses: short-time peaks for max. 0.
PAGE 9
Technical data (cont’d) Environmental conditions Storage Climatic conditions Mechanical conditions Temperature range Humidity Transport Climatic conditions Mechanical conditions Temperature range Humidity Operation Climatic conditions Mechanical conditions Temperature range Humidity DIN EN 60721-3-1 Class 1K3 Class 1M2 -20...+60 °C <95 % r.h. DIN EN 60721-3-2 Class 2K2 Class 2M2 -50...+60 °C <95 % r.h. DIN EN 60721-3-3 Class 3K5 Class 3M2 -20...+60 °C <95 % r.h.
PAGE 10
Connection diagrams The following connection diagrams show the start position as supplied: - End switch position II «Closed» - Dead No. d → LGB22... / LGB32... / LME22... / LME23... / LMG22... 2-stage or modulating operation → prepurging at nominal load position «NL» LGB22... / LGB32... / LME22... / LME23... / LMG22...
PAGE 11
Connection diagrams (cont’d) No. f → LOA24... / LOA25... / LOA26... / LOA28... / LOA36... / LMO24... / LMO44... 2-stage operation → prepurging at low-fire position «KL» LOA24... / LOA25... / LOA26... / LOA28... / LOA36... LMO24... / LMO44... 3) 2 1 10 8 3 7 1) 6 4 5 11 12 1) 2) 3) Without oil preheater Refer to Data Sheet N7118 LOA... / LMO...
PAGE 12
Connection diagrams (cont’d) No. f → LGB21... / LME21... / LMG21... 2-stage operation → prepurging at low-fire position «KL» LGB21... / LME21... / LMG21... 12 2 10 3 8 6 11 9 7 4 5 1 **) **) Only required with LGB21...
PAGE 13
Connection diagrams (cont’d) No. g → LME22... / LME23... / LGB22... / LGB32... / LMG22... 2-stage operation → prepurging at nominal load position «NL» LGB22... / LGB32... / LME22... / LME23... / LMG22...
PAGE 14
Connection diagrams (cont’d) No. h → LFL... / LGK16... / LAL... / LOK16... 2-stage or modulating operation → prepurging at nominal load position «NL» LFL... / LGK16... / LAL... / LOK16...
PAGE 15
Connection diagrams (cont’d) No. k → LOA... / LMO24... / LMO44... 2-stage operation → prepurging at low-fire position «KL» LOA... / LMO24... / LMO44... 2 1 10 8 3 7 6 4 5 11 12 1) 1) Refer to Data Sheets N7118 and N7130 *) Thermostat or similar unit with NO contact (1-wire control) I II III IV Red Blue Orange Black QRB... OW GP Z OH M AL R BV1 *) LR BV2 SB HS I N 8 2 3 1 4 5 7 6 0 Si N c1 L LK C 7804a07/0805 M I II III IV 9 SQN7x.
PAGE 16
Connection diagrams (cont’d) No. k → LFL... / LGK16... / LAL... / LOK16... 2-stage operation → prepurging at nominal load position «NL» LFL... / LGK16... / LAL... / LOK16... 1 2 19 9 20 11 10 8 18 *) SB LR BV1 *) Thermostat or similar unit with NO contact (1-wire control) I II III IV Red Blue Orange Black BV2 N HS I 8 2 3 1 4 5 7 6 0 Si N L c1 LK C M II III IV 7804a05/0805 I 9 SQN7x.
PAGE 17
Connection diagrams (cont’d) No. F → LAL... / LFL... 3-stage operation → prepurging at nominal load position («ST.3») LFL... / LAL... 1 2 4 SB 14 13 12 W 5 20 9 11 8 10 19 18 BV1 ϑ R ST.2 ST.1...3 Stage 1...3 ST.1 LP ϑ C External auxiliary relay I II III IV V VI Red Blue Orange Yellow Black Green ST.3 C c BV2 HS I N 7 4 5 6 Si N BV3 8 1 9 2 b1 B 0 3 a1 L b2 a2 IV LK 7804a14/0805 A M I II III V VI F SQN75.2F6xxx W SB R A C B D M1 M2 Z BV1 ST.1 ST.
PAGE 18
Connection diagrams (cont’d) No. b → Universal use N 3 1 2 II I 7804a10/0805 6 4 5 7 LK III M I Red II Blue III Orange 0 SQN7x.x03xxx No. K N → Universal use N 1 2 II 7804a11/0805 I 3 4 III 5 7 6 8 LK IV M K I II III IV Red Blue Orange Black SQN7x.xK4xxx 18/22 Building Technologies HVAC Products CC1N7804en 25.04.
PAGE 19
Connection diagrams (cont´d) No. c → TMG740 / TMO720 2-stage operation → prepurging at nominal load position «NL» TMG740 / TMO720 21 13 8 14 15 4 9 1) 12 6 1) TMO720 terminal no. 6 TMG740 terminal no. 21 2) Cams of auxiliary switches III and IV rigidly connected I II III IV V Red Blue Orange Orange Black • TMG... / TMO... are burner controls of other manufacture. The user must check with the supplier of the TMG... / TMO...
PAGE 20
Legend No. d I / II III / IV / V AL BV1 BV2 BV3 EK2 ION FS GL GP HS KL L LK LKP LP LR M M M1 M2 N NL OH OW QRB... R RV SA Si SB ST... t... / T... TSA R Z CLOSED S T Number of internal diagram.
PAGE 21
Dimensions Dimensions in mm R SQN70... / SQN71... M 36 AGA70.3 6 26 24 24 16 M,R 90 11 2xPg9 1 x 3/8" adapter (Connector) for US and Canada 4) 18 3) > = 65 > = 105 22 80 1) 84 1) 117 M,R 7804m01e/0805 66.5 ø 16 ø 5.3 T 21 33 66 1) Drive shaft versions Side view Drife shaft versions Cross-section Drife shaft no. (refer to "Type summary" 8 h9 ° 45 17 0 7 90 ° 0 0.05 0 .05 0 7 25 1 8 h9 25 +0,05 2) 10 h9 5 3 6.5 +0.03 0.09 6 9.5 3 js9 3 +0.
PAGE 22
Dimensions (cont’d) Dimensions in mm SQN74... / SQN75... 30.5 1) 16 19 Pg9 19.5 Pg11 M -0.09 M R R ø14 1) 26 26 A 7804m02e/0504 76.5 A 104.5 103.5 6 115 65 > = 100 90 ° 3.5 Drive shaft no. (refer to "Type summary") 0 0.05 Drive shaft versions Cross-section 7 Drive shaft version Side view 1 8 h9 25 Drive shafts shown in «Closed» position (end switch II) A R 22/22 Building Technologies HVAC Products M Knockout hole for loose cable entry Through-hole 5.3 mm dia.