Lennox Dave Lennox Signature XP25 Installation Instructions Manual Download Page 13

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Page 13

XP25 SERIES

STEP 3 -- ELECTRICAL (Continued) -- Outdoor Control Jumper and Terminals

PUSH

BUTTON

7-SEGMENT

DISPLAY

PUMP DOWN - WHEN UNIT IS IN PUMP DOWN MODE, Pd WILL BE

DISPLAYED ON 7-SEGMENT.

TO ACTIVATE PUMP DOWN MODE, THE CONTROL MUST BE IN

THE IDLE STATE, AND THE PUMP DOWN JUMPER PLACED

ACROSS THE TWO PUMP DOWN PINS. TO DEACTIVATE,

REMOVE JUMPER.

FIGURE 9

Summary of Contents for Dave Lennox Signature XP25

Page 1: ...LATION INSTRUCTIONS Dave Lennox Signature Collection XP25 System HEAT PUMPS 507005 01 7 2018 PACKING LIST OUTDOOR UNIT WARRANTY CARD GROMMETS 2 BUSHING 1 RAST 6 PIN CONNECTOR 1 WARNING Improper instal...

Page 2: ...WOOD OR PLASTIC SLAB NO PLASTIC ANCHOR HOLE DRILL 1 8 INSTALL UNIT LEVEL OR IF ON A SLOPE MAINTAIN SLOPE TOLERANCE OF 2 DEGREES OR 2 INCHES PER 5 FEET 50 MM PER 1 5 M AWAY FROM BUILDING STRUCTURE MOUN...

Page 3: ...nt or scratched While handling or stowing the panels consider any weather conditions especially wind that may cause panels to be blown around and damaged UNIT DIMENSIONS INCHES MM 4 5 8 117 BASE WITH...

Page 4: ...ressors have an internal vacuum pro tector that will unload scrolls when suction pressure goes below 20 psig A hissing sound will be heard when the compressor is running unloaded Protector will reset...

Page 5: ...Sizes for Horizontal Runs Required Vapor Riser Size 024 180 150 60 60 7 8 5 8 036 180 150 60 60 7 8 3 4 048 180 150 60 60 7 8 7 8 060 180 150 60 60 7 8 7 8 Table 3 Liquid Line Diameter Selection Table...

Page 6: ...the indoor unit s liquid line orifice housing LOW HIGH EXISTING INDOOR UNIT GAUGE MANIFOLD CYLINDER CONTAINING CLEAN HCFC 22 TO BE USED FOR FLUSHING Positioned to deliver liquid refrigerant LIQUID LIN...

Page 7: ...rvice port nitrogen flow will have an exit point NITROGEN HIGH LOW B A C PIPING PANEL REMOVAL PREPARING LINE SET CAP AND CORE REMOVAL Remove piping panel to access service valves Cut ends of the refri...

Page 8: ...ted nitrogen at 1 to 2 psig through the refrigeration gauge set into the valve stem port connection on the liquid service valve and out of the suction vapor valve stem port See steps 3A 3B and 3C on p...

Page 9: ...ASS NUT DISTRIBUTOR ASSEMBLY 3 Install one of the provided Teflon rings around the stubbed end of the check expansion valve and lightly lubricate the connector threads and expose surface of the Teflon...

Page 10: ...he cylinder of HFC 410A refrigerant to the center port of the manifold gauge set Open the valve on the HFC 410A cylinder vapor only B Open the high pressure side of the manifold to allow HFC 410A into...

Page 11: ...and closing the manifold gauge valves F When the absolute pressure requirement above has been met disconnect the manifold hose from the vacuum pump and connect it to a cylinder of HFC 410A positioned...

Page 12: ...e care during unit installation and service to protect the unit s electronic controls Precautions will help to avoid control exposure to electrostatic discharge by putting the unit the control and the...

Page 13: ...rminals PUSH BUTTON 7 SEGMENT DISPLAY PUMP DOWN WHEN UNIT IS IN PUMP DOWN MODE Pd WILL BE DISPLAYED ON 7 SEGMENT TO ACTIVATE PUMP DOWN MODE THE CONTROL MUST BE IN THE IDLE STATE AND THE PUMP DOWN JUMP...

Page 14: ...nut to bundle the four unused wires at each end of the cable Each bundle should also include an additional wire that should be connected on each end to the C terminal as shown in the figure below Any...

Page 15: ...play and push button operations are available on the unit access panel and in the XP25 Installation and Service Procedures Corp 1252 L11 System Component Configuration Outdoor Unit All outdoor unit se...

Page 16: ...ls to operate check the following before calling for service S Verify room thermostat settings are correct S Verify that all electrical disconnect switches are ON S Check for any blown fuses or trippe...