Installation, Operation, and Maintenance VariTrane™ Single-Duct and Fan-Powered Units All VariTrane VAV models with pneumatic, electronic, DDC controls, and diffusers. VCCF04 - 24 VCEF04 - 24 VCWF04 - 24 SAFETY WARNING Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
Introduction Read this manual thoroughly before operating or servicing this unit. Warnings, Cautions, and Notices Safety advisories appear throughout this manual as required. Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions. The three types of advisories are defined as follows: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
Introduction WARNING Fiberglass Wool! Product contains fiberglass wool. Disturbing the insulation in this product during installation, maintenance or repair will expose you to airborne particles of glass wool fibers and ceramic fibers known to the state of California to cause cancer through inhalation. Glass wool fibers could result in respiratory, skin or eye irritation.
Table of Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Warnings, Cautions, and Notices . . . . . . . . 2 Important Environmental Concerns . . . . . 2 Important Responsible Refrigerant Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Receiving and Handling . . . . . . . . . . . . . . . 3 Model Number Descriptions . . . . . . . . . . . . . . 5 Single-Duct Units . . . . . . . . . . . . .
Model Number Descriptions Single-Duct Units Digit 1, 2 — Unit Type VC = VariTrane Single Duct Digit 3—Reheat C = E = W = Cooling Only Electric Heat Hot Water Heat Digit 4—Development Sequence F = DD27= Sixth DD28= DD29= DD30= Digit 5, 6—Primary Air Valve 04 05 06 08 10 12 14 16 24 = = = = = = = = = 4" inlet (225 cfm) 5" inlet (350 cfm) 6" inlet (500 cfm) 8" inlet (900 cfm) 10" inlet (1400 cfm) 12" inlet (2000 cfm) 14" inlet (3000 cfm) 16" inlet (4000 cfm) 24" x 16" inlet (8000 cfm) Digit 7, 8, 9
Model Number Descriptions (Electric heat-Modulating SCR) Remote (Staged EH) DD97= UC210 Ventilation Flow (Electric heat-Modulating SCR) ENCL= Shaft Only in Enclosure ENON= Shaft Out Side for Electric Units FM00= Other Actuator and Control FM01= Trane Supplied Actuator, Other Ctrl PC00= N.C. Actuator and Linkage Only PC04= N.C. with DA Stat, 3000 Series PC05= N.C. with RA STAT, 3000 Series PCSS= Normally Closed Special PN00= N.O. Actuator and Linkage Only PN04= N.O. 3000 Series, DA STAT PN05= N.O.
Model Number Descriptions Digit 38—Piping Package 0 A B = = = None 2-way Automatic Balancing) 3-way Automatic Balancing Digit 39—Water Valve 0 1 2 3 4 = = = = = None Proportional, HW Valve, 0.7 Cv Proportional, HW Valve, 2.7 Cv Proportional, HW Valve, 6.6 Cv Proportional, HW Valve, 8.0Cv Digit 40—Flow Rate 00 A B C D E F G H J K L M N P Q R S T U V W X Y Z 1 2 3 4 5 6 7 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = None 0.5 gpm (0.03 l/s) 1.0 gpm (0.06 l/s) 1.5 gpm (0.09 l/s) 2.
Model Number Descriptions Dual-Duct Units Digit 1, 2, 3—Unit Type supplied controller PVR = Pneumatic Volume Regulator Digit 31—Not Used Digit 4—Development Sequence Digit 16—Insulation Digit 32—Not Used F A B D F G 0 VDD= = VariTrane dual-duct Sixth Digit 5, 6—Primary Air Valve 05 06 08 10 12 14 16 = = = = = = = 5" inlet (350 cfm) 6" inlet (500 cfm) 6" inlet (900 cfm) 10" inlet (1400 cfm) 12" inlet (2000 cfm) 14" inlet (3000 cfm) 16" inlet (4000 cfm) Digit 7, 8—Secondary Air Valve 05 06 08 1
Model Number Descriptions Fan-Powered Units Digit 1, 2—Unit Type VP = VS = LP = LS = VariTrane Fan-Powered Parallel VariTrane Fan-Powered Series VariTrane Fan-Powered Low-Height Parallel VariTrane Fan-Powered Low-Height Series Digit 3—Reheat C = E = W = Cooling Only Electric Heat Hot Water Heat Digit 4—Development Sequence F = Sixth Digit 5, 6—Primary Air Valve 05 06 08 10 12 14 16 RT = = = = = = = = 5" inlet (350 max cfm) 6" inlet (500 max cfm) 8" inlet (900 max cfm) 10" inlet (1400 max cfm) 12"
Model Number Descriptions Digit 19—Outlet Connection Digit 26—Electric Heat Voltage 1 2 0 A B C D E F G H J K = = Flanged Slip & Drive Digit 20—Attenuator 0 = W = No Attenuator With Attenuator Digit 21—Water Coil 0 1 2 3 4 5 6 A B C = = = = = = = = = = D = E = F = None 1-Row–Plenum inlet installed RH 2-Row–Plenum inlet installed RH 1-Row–Discharge installed, LH 1-Row–Discharge installed, RH 2-Row–Discharge installed, LH 2-Row–Discharge installed, RH1 1-Row–Premium water coil inlet 2-Row–Prem
Unit Information Single-Duct Units Figure 3. Typical single duct unit — VCEF The basic unit consists of a sheet metal casing with an air valve, which is used to modulate the air being delivered into the occupied zone. The unit is designed to modulate either cooling or heating air between the temperatures of 40°F and 140°F.
Unit Information Fan-Powered and Fan-Powered LowHeight Units Figure 8. Low height parallel: LPWF (top) & low height parallel: LPEF (bottom) VariTrane fan-powered and low-height fan-powered units can be either parallel or series, with or without re-heat. (SeeFigure 5, p. 12 thru Figure 8, p. 12.) Typical Fan-Powered Units Figure 5.
Unit Installation WARNING Proper Structural Support Required! Figure 10. Dual-duct hanger bracket locations C B Ceiling structure must be strong enough to support the weight of the unit. If unsure, check with a structural engineer. Refer toTable 1, p. 24 thruTable 6, p. 26 for unit weights. Failure to ensure proper structural ceiling support could result in unit failing from its location which could result in death or serious injury.
Unit Installation Note: Use caution not to damage the flow tubes when making ductwork connections or insulating. 3. Cut “slits” in the insulation for the flow tubes and secure with duct tape. Clearances For proper service, it is recommended that at least 36” of side clearance be provided to service and access singleduct and dual-duct terminals units. 4. If the unit is to be installed in a location with high humidity, external insulation around the heating coil should be installed as required.
Unit Installation Stand Alone VV550 LonTalk™ Control When there is no communication to the VV550 control and the unit is in the stand alone mode the control action is determined by the auxiliary temperature sensor located on TB3-5 and TB3-6 terminals on the VV550 board. The control must also be configured through the “Inputs Tab” of Analog Input 4 as “Primary Supply Air Sensor”. In order for the auxiliary sensor to determine the control action (heat, cool) it must be located in the supply inlet of the duct.
Unit Installation Figure 11. Parallel hanger bracket locations sizes C Water Coil Airflow Plenum Inlet TOP VIEW Parallel Cooling & Hot Water B Flow Ring Tubing Primary Airflow F Optional Attenuator Field Installed E Air Valve D A Airflow Discharge Outlet A B D E C F FAN SIZE 26.75" (679 mm) 26.75" (679 mm) 41.154" (1041 mm) 3.25" (83 mm) 20.00" (508 mm) 38.95" (989 mm) 02SQ 03SQ, 04SQ, 05SQ 29.75" (756 mm) 26.75" (679 mm) 41.154" (1041 mm) 3.25" (83 mm) 20.00" (508 mm) 38.95" (989 mm) 36.
Unit Installation Figure 12. Series hanger bracket locations A Flow Ring Tubing B C Air Valve Optional Attenuator Field Installed Airflow Plenum Inlet TOP VIEW Series Cooling & Hot Water E D 2. 1. Fan Inlet w/o Attenuator 1. All attenuators are the same length and width. 2. Sizes 01 and 02 units are smaller than attenuators. Water Coil 1.625" (41 mm) A FAN SIZE B C D F (Elec. Heat Only) E G (Elec. Heat Only) J (Elec. Heat Only) 02SQ 18.75" (476 mm) 26.75" (679 mm) 3.
Unit Installation Figure 13. Low-height parallel 08SQ/09SQ w/hot water or electric heat 31.65" (804 mm) 13.00" (330 mm) Airflow Plenum Inlet 23.90" (607 mm) Primary Airflow 19.86" (504 mm) Optional Attenuator Field Installed 24.30" (617 mm) 3.35" (85 mm) Airflow Discharge Outlet 23.10" (587 mm) 13.80" (350 mm) TOP VIEW 4.00" (102 mm) 31.65" (804 mm) 13.00" (330 mm) 23.90" (607 mm) Airflow Plenum Inlet Primary Airflow 19.86" (504 mm) Optional Attenuator Field Installed Terminal Box 24.
Unit Installation Figure 14. Low-height parallel 10SQ 1.625" (41 mm) Flow Ring Tubing 38.95" (989 mm) Primary Airflow Plenum Inlet Air Valve 5.625" (143 mm) 38.75" (984 mm) Terminal Box Optional Heater 5.625" (143 mm) Airflow Discharge Outlet 41.
Unit Installation Figure 15. Low-height series 08SQ/09SQ w/hot water or electric heat g 31.65" (804 mm) 4.00" (102 mm) 10.13" (257 mm) 12.85" (326 mm) Airflow Plenum Inlet Primary Airflow 19.86" (504 mm) Optional Attenuator Field Installed Air Valve 3.35" (85 mm) 34.30" (871 mm) 31.65" (804 mm) 3.35" (85 mm) Water Coil TOP VIEW 4.00" (102 mm) 10.13" (257 mm) 12.85" (326 mm) Airflow Plenum Inlet Primary Airflow Optional Attenuator Field Installed Air Valve Airflow 19.86" (504 mm) 3.
Unit Installation Figure 16. Low-height series 10SQ w/hot water or electric heat 19.45" (494 mm) 31.65" (804 mm) 19.45" (494 mm) 10.12" (257 mm) 31.65" (804 mm) Optional Attenuator Field Installed Optional Attenuator Field Installed Primary Airflow 19.86" (504 mm) Airflow Plenum Inlet Airflow Plenum Inlet 3.35" (85 mm) 19.86" (504 mm) 30.30" (770 mm) 3.35" (85 mm) TOP VIEW Airflow Discharge Outlet 3.50" (89 mm) 42.00" (1067 mm) 3.50" (89 mm) 19.45" (494 mm) 31.65" (804 mm) 10.
Unit Installation Figure 17. Attenuator installation - parallel units 1. Attach attenuator as shown with provided mounting brackets. Mounting Bracket Optional Attenuator Field Installed Note: Bottom bracket not shown. Bottom bracket to be installed in same orientation on bottom of unit. Figure 18. Attenuator installation - series units 1. Attach attenuator as shown with provided mounting brackets. Mounting Bracket Optional Attenuator Field Installed Note: Bottom bracket not shown.
Unit Installation Figure 19. Attenuator installation - low-height parallel units 1. Attach attenuator to unit as shown with provided mounting brackets. MOUNTING BRACKET OPTIONAL ATTENUATOR FIELD INSTALLED Notes: Bottom bracket not shown. Bottom bracket to be installed in same orientation on bottom of unit. Figure 20. Attenuator installation - low-height series units 1. Attach attenuator to unit as shown with provided mounting brackets.
Unit Installation Table 1.
Unit Installation Table 3.
Unit Installation Table 5.
Unit Setup Figure 22. Flow sensor P vs. airflow delivery Flow Sensor Differential Pressure (inches water) 10 6 4 1 8" 10" 8" x 12" 12" 14" 16" 16" x 24" 5 0.1 0.01 10 100 1,000 10,000 Airflow (CFM) Fan Motor Amperage Table 7. Maximum ECM fan motor amperage (FLA) Fan Size HP VAC 115 VAC 277 VAV Parallel/Series 03SQ 1/3 4.5 2.4 Parallel/Series 04SQ 1/2 6.5 3.5 Parallel/Series 05SQ 1 10.1 5.4 Parallel/Series 06SQ 1 9.5 5.1 Low-height Parallel/ Series 08SQ 1/2 2.0 1.
Unit Setup Electrically Commutated Motor (ECM) Table 8. Maximum PSC fan motor amperage (FLA) 115 VAC 277 VAV 347 VAC Fan Size HP VAC 208 Parallel/Series 02SQ 1/8 1.6 0.7 .7 - Parallel/Series 03SQ 1/3 4.3 1.6 1.4 - Parallel/Series 04SQ 1/3 5.5 2.0 1.8 - Parallel/Series 05SQ 1/2 6.7 2.4 2.2 - Parallel/Series 06SQ 1/2 - 3.8 3.3 4.6 Parallel/Series 07SQ 1 - 4.7 3.8 6.6 Low-height Parallel/ Series 08SQ 1/3 5.5 2.5 1.8 - Low-height Parallel/ Series 09SQ 1/3 5.
Unit Setup Table 9. Table 9.
Unit Setup Table 10. VPxF 04SQ ECM CFM (continued) Table 10.
Unit Setup Table 11. Table 11.
Unit Setup Table 12. VPxF 06SQ ECM CFM (continued) Table 12.
Unit Setup Table 13. VSxF 03SQ ECM CFM (continued) Table 13.
Unit Setup Table 14. VSxF 04SQ ECM CFM (continued) Table 14.
Unit Setup Table 15. VSxF 05SQ ECM CFM (continued) Table 15.
Unit Setup Table 16. VSxF 06SQ ECM CFM (continued) Table 16.
Unit Setup Table 17. Table 17.
Unit Setup Table 18. LPxF 09SQ ECM CFM (continued) Table 18.
Unit Setup Table 19. LSxF 08SQ ECM CFM (continued) Table 19.
Unit Setup Table 20. LSxF 09SQ ECM CFM (continued) Table 20.
Unit Setup Table 21. LSxF 10SQ ECM CFM (continued) Table 21.
Wiring Diagrams Note: See programming guides listed below for detailed wiring information on the following: UCM 4.2: VAV-SVX01*-EN UC400: VAV-SVX07*-EN VV550: VAV-SVP01*-EN Heaters with Contactors Figure 25.
Wiring Diagrams Figure 26.
Wiring Diagrams Figure 27.
Wiring Diagrams Figure 28.
Wiring Diagrams Figure 29.
Wiring Diagrams Figure 30. Fan-powered control boxes Fan-powered Control Box with Pneumatic Controls Duct Pressure Switch Option GREEN GROUND SCREW L1 N GREEN GROUND SCREW 5. TRANSFORMER BL BR R BK BK W C 24V 24V } TO VAV CONTROLLER DISCONNECT SWITCH L1 N 5. TRANSFORMER 6. Y LINE VOLTAGE OR FROM HEATER TERMINAL } LINE VOLTAGE OR FROM HEATER TERMINAL } Fan-powered Control Box with Electronic or DDC Controls NO DISCONNECT SWITCH BK BK W 2. 2.
Wiring Diagrams Figure 31. Fan-powered units with ECM Fan-powered Control Box w/ ECM with Electronic or DDC Controls (Depending on the size of the unit, the ECM board may or may not be located in the fan control box.) Fan-powered Control Box w/ ECM with Pneumatic Controls Duct Pressure Switch Option LINE VOLTAGE 4. L1 LINE VOLTAGE FAN MOTOR FAN MOTOR OR FROM HEATER TERMINAL } } OR FROM HEATER TERMINAL 4. N BK Y GR RED TERMINAL BLOCK DISCONNECT SWITCH 2 2. DISCONNECT SWITCH W 4 3.
Wiring Diagrams Figure 32. Fan-powered low-height units Fan-Powered Low-Height Control Box with Electronic or DDC Controls CAPACITOR 5. LINE VOLTAGE OR FROM HEATER TERMINAL Fan-Powered Low-Height Control Box with Pneumatic Controls MOTOR BR CAPACITOR Duct Pressure Switch Option BR CAPACITOR } L1 FAN MOTOR 2 (SIZE 10 ONLY) 3. FAN 3. BR W BK BK 5. LINE VOLTAGE OR FROM HEATER TERMINAL 3. CAPACITOR BR L1 W N BR MOTOR SPEED GREEN CONTROL W BK 2. BK GROUND DISCONNECT W BR BR 2.
Wiring Diagrams Figure 33. Fan-powered low-height units with ECM Fan-Powered Low-Height Control Box w/ ECM with Electronic or DDC Controls Fan-Powered Low-Height Control Box w/ ECM with Pneumatic Controls (Depending on the size of the unit, the ECM board may or may not be located in the fan control box.) } FAN MOTOR FAN MOTOR 2 (SIZE 10 ONLY) FAN MOTOR 2 (SIZE 10 ONLY) GR NEUT. TERMINAL BLOCK RED GREEN GROUND SCREW RED 2. DISCONNECT SWITCH W 3. 2 BK TERMINAL BLOCK DISCONNECT SWITCH 2.
Maintenance Periodic maintenance of the VariTrane product is minimal, but necessary for efficient operation. Routine maintenance consists of inspecting/replacing the air filters of the fan-powered terminals. Figure 34. Standard motor removal Motors Both the PSC (permanent split capacitor) and the ECM (Electrically Commutated Motor) require no lubrication during its normal life of operation. Fan Wheel Periodically, the fan wheel should be inspected for dirt or debris and cleaned as necessary.
Maintenance The low-height fan assembly was designed with an inlet ring that assists with removal of the fan motor. To access the fan motor assembly, the bottom panel must be removed. The inlet ring is held in place by six bolts and three motor mount bolts. Remove these bolts and the motor and fan wheel will come out of the fan housing. Figure 36. Typical heat sink fin orientation Figure 35.
Installation of Diffusers General Concealed Spline Ceiling All units must be installed upright and level as indicated by the arrow on the side of the units. Return air slots should be placed perpendicular and offset to the slot diffusers to avoid short-circuiting of air distribution patterns. Follow these procedures to finish installation of control and satellite diffusers and concealed spline for suspension ceilings before completing the ceiling construction (Figure 38, p. 53).
Installation of Diffusers Drywall/Plaster Ceiling Finish installation of diffusers in plaster ceiling. Follow these procedures before completing the ceiling construction (Figure 39, p. 54). NOTICE: Equipment Damage! Do not install trim frame into ceiling using screws. When diffuser is placed on the trim frames, it will pull out. 1. Suspend the units above the intended ceiling level and their approximate horizontal positions and finish running flexible ductwork. 2.
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