Lennox VRF VVCA Series Installation Instructions Manual Download

Page: 25 / 25

Technical Support

1-844-GET-VRF1

(1-844-438-8731)

www.LennoxVRF.com

Download the app

from the Apple App Store or the Google Play store.

Summary of Contents for VRF VVCA Series

Page 1: ...ges for connecting the supply plenum VRF VRF SYSTEMS Air Handler 507539 05 11 2018 WARNING Improper installation adjustment alteration ser vice or maintenance can cause property damage personal injury...

Page 2: ...ing voided Note Only Lennox VRF indoor units will work with Lennox VRF outdoor units and associated mechanical equipment Lennox Mini Split indoor units are similar in appearance but must not be connec...

Page 3: ...and Either Side LOW VOLTAGE INLETS Top and Either Side C FILTER ACCESS AIR FLOW A RETURN AIR E SUPPLY AIR 1 5 8 41 3 76 10 1 4 260 3 4 19 F G RETURN AIR Dimension 018 030 036 054 in mm in mm A 45 3 4...

Page 4: ...onnection Vertical Drain Pan Auxiliary Horizontal Auxiliary Upflow Straps Drip Shield Baffle Drain Connection Drain Connection Model No 18 36 48 54 Cabinet 0 inch 0 mm 0 inch 0 mm To Plenum 0 inch 0 m...

Page 5: ...ure to follow these instructions can result in death explosion or fire CAUTION Make sure the blower motor support is tight 3 motor mount bolts then check to see if wheel is secured to motor shaft befo...

Page 6: ...is will also allow access for future maintenance For ease of installation it is best to make any necessary coil configuration changes before setting the air handler in place Figure 2 Upflow Configurat...

Page 7: ...the blower section panel 2 Remove the T 2 and T 2B sensors from the sleeves The sensors look similar label the sensors so that they can be reinstalled to the proper locations T 2 Sensor black cable no...

Page 8: ...8 Disconnect Wiring Harness 12 Release the wiring harness clips and ties Carefully remove the wiring harness 13 Insert the wiring harness plug into the hole you cut into the coil front plate 14 Reins...

Page 9: ...oil Polyolester it is not recommended to mix PVE oil with any other type of refrigerant oil Refrigerant leaks are unlikely however if a refrigerant leak occurs open a door or windows to dilute the re...

Page 10: ...n pressurization of the low side shell and suction tubing Application of a brazing torch to a pressurized system may result in ignition of the refrigerant and oil mixture Check the high and low pressu...

Page 11: ...ry drain The condensate drain is on the negative pressure side of the blower therefore air being pulled through the condensate line will not allow positive drainage without a proper trap 6 Route the d...

Page 12: ...ect supply air duct to the flange on top of the air handler If an isolation connector is used it must be nonflammable When sizing the return air filter grille a minimum surface area of 200 sq in per t...

Page 13: ...witch settings Settings may only be adjusted by a trained technician as part of the com missioning procedures CAUTION This unit must be properly grounded and protected by a circuit breaker The ground...

Page 14: ...WIRED CONTROLLER NOTE COMPONENT IN DASH LINE IS OPTIONAL OR FIELD WIRING WATER LEVEL SWITCH PUMP MOTOR EEV T2B T2 TR FM XS1 10 XP1 10 T1 XT1 2 PUMP CS KEY COMPONENT INDOOR FAN ELECTRONIC EXPANSION VAL...

Page 15: ...T2 TR FM XS1 10 XP1 10 T1 XT1 2 PUMP CS KEY COMPONENT INDOOR FAN ELECTRONIC EXPANSION VALVE INLET AIR TEMP COIL TEMP TRANSFORMER TERMINAL BLOCK EVAP OUTLET TEMP IN COOLING MODE PLUG JACK REMOTE ON OF...

Page 16: ...L1 L2 L3 L1 L2 L1 L2 Single Phase power wiring PQE PQE Figure 15 Typical Power Wiring Diagram VRF Heat Recovery System Shown Indoor units and MS boxes on the same refrigeration circuit should have a...

Page 17: ...g Torque Tightening torque lb ft Terminal base of remote controller Signal transmission wire X2M 0 58 0 72 Terminal base of power supply X1M 0 87 1 06 Grounding terminal M4 1 06 1 43 Figure 16 Typical...

Page 18: ...P and Q of the daisy chain P Q All shields of shielded cable connect to GROUND terminal not to terminal E 18 GA stranded 3 conductor shielded control wire polarity sensitive Typical Wiring Diagram NE...

Page 19: ...31 400 3 0 53 8 60 5 240 10 0 34 100 3 0 55 8 60 5 VVCA030H4 Description Input Blower Motor Full Load Amps 2 Minimum Circuit Ampacity 3 Maximum Overcurrent Protection Blower Speed Volt kW 1 Btuh Low...

Page 20: ...or Full Load Amps 2 Minimum Circuit Ampacity 3 Maximum Overcurrent Protection Blower Speed Volt kW 1 Btuh Low Medium High 5 kW V8EH0050P 1P 13P59 208 3 8 12 800 4 2 28 3 4 30 220 4 2 14 300 4 2 29 3 4...

Page 21: ...1260 140 4 171 2 205 1 237 9 268 2 297 6 335 6 366 6 1530 237 6 270 4 305 7 346 1 385 8 432 5 467 1 513 3 1800 368 1 421 9 466 7 522 1 573 9 619 4 684 2 700 24 2 Ton 600 55 8 76 6 95 9 116 6 135 8 157...

Page 22: ...n is recommended Air Filter Removal 1 Remove screws remove filter cabinet cover 2 Remove air filter 3 Clean the air filter using vacuum or water For heavy accumulations use soft brush and mild deterge...

Page 23: ...unit capacity 4 Network address of IDU 5 The actual setpoint temperature 6 The actual indoor temperature T1 7 The actual indoor temperature T1 8 The middle coil temperature T2 9 The coil outlet temper...

Page 24: ...ror E0 Mode conflict error Ed Outdoor units error FE IDU doesn t have address when it is first turned on Table 6 Fault Code Display on Indoor Unit Receiver Table 7 Fault Code Display on Controller Tro...

Page 25: ...25 Technical Support 1 844 GET VRF1 1 844 438 8731 vrftechsupport lennoxind com www LennoxVRF com Download the app from the Apple App Store or the Google Play store...