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Summary of Contents for Trane VariTrac VAV-SVN04A-EN
- Page 1 Installation/ Operation Maintenance ™ VariT rac Dampers VAV-SVN04A-EN June 2002...
- Page 2 General Rectangular Bypass Damper Rectangular Actuator These instructions do not cover all variations in systems nor provide for Specification: Sheet metal box 24-gage galvanized every possible contingency that may steel · · · · · Actuator Design: arise at a jobsite installation. Length 16"...
- Page 3 General Install Bypass Dampers Bypass Damper Wiring Bypass damper(s) should be located The interconnect cable is pre-wired to before the first zone runs out from the the bypass damper and may be supply air duct. VariTrac dampers or lengthened if necessary. supply duct branches should be IMPORTANT: installed downstream of bypass...
- Page 4 Installation If the supply duct branches out at the Installing the Communicating IMPORTANT riser, install the control in the largest Sensor/Bypass Control The sensor assembly should be supply duct. installed on the side of the duct to keep The communicating sensor/bypass A two-inch hole is required to insert the the pressure transducer in a vertical control is located between the supply...
- Page 5 Installation Figure 3: VariTrac Damper Installation Install the VariTrac Dampers A sketch of basic damper installation is IMPORTANT: shown in Figure 3. The damper may be Mounting screws must be connected with hard duct or flex duct at 3" away from damper bend to avoid interference with either end.
- Page 6 Installation WARNING Connect UCM Wiring Connect the power to terminals TB1-1 Equipment Damage! (24V) and TB1-2 (ground). 24 Vac is Connecting a shared UCM power supply with reversed polarity will cause required to power the UCM control. damage to the UCM, TCI, and central control panel. 20 Vac to 28 Vac is acceptable.
- Page 7 Installation Damper To 24V Actuator Transformer Wiring R (HOT) (TB1-1) 24 VAC) O (COMMON) (TB4-1) BIP GR (NC CONTACT) (TB1-1) 24VAC BK (RETURN) (TB1-2) GND NOT CONNECTED OPTIONAL FIELD INSTALLED OCCUPANCY SENSOR 3RD STG. TO J11 2ND STG. HEATER STAGE TO J10 CONTACTOR(S) 1ST STG.
- Page 8 An American Standard Company www.trane.com Trane has a policy of continuous product and product data improvement and reserves the right to change design For more information contact and specifications without notice. Only qualified technicians should perform the installation and servicing of your local district office or equipment referred to in this publication.
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