Lennox EL16XP1 Series Unit Information Download Page 21 | Manualshive

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Page 21

24V TERMINAL STRIP

CONNECTIONS

(P2)

DIAGNOSTIC LEDS

(DS1 AND DS2)

PRESSURE

SWITCH CIRCUIT

CONNECTIONS

TEST PINS (P1)

Note - Component locations vary by board manufacturer.

SENSOR CONNECTION

(COIL AND AMBIENT

SENSORS)

(P4)

REVERSING VALVE

(O OUT)

DELAY PINS

(P5)

LOW AMBIENT

THERMOSTAT PINS

(P3)

DEFROST TERMINATION

PIN SETTINGS (P1)

Demand Defrost

Control (A108)

FIGURE 12. Demand Defrost Control (A108)

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Summary of Contents for EL16XP1 Series

Page 1: ...cation 2 Dimensions 3 Specifications 4 Typical Unit Parts Arrangement 6 Operating Gauge Set and Service Valves 6 Unit Placement 8 New or Replacement Line Set 9 Brazing Connections 11 Flushing Line Set...

Page 2: ...ides may be A clearance of 24 in must be maintained between two units 48 in 1219 mm clearance required on top of unit Model Number Identification Nominal SEER Unit Type P Heat Pump Outdoor Unit Refrig...

Page 3: ...SUPPORT FEET EL16XP1 018 TO 030 BASE SECTION Medium Base EL16XP1 036 TO 060 BASE SECTION Large Base 13 7 8 352 3 5 8 92 20 5 8 524 7 3 4 197 27 1 8 689 4 1 2 114 3 1 4 83 Depth Width Model No A B C in...

Page 4: ...0 98 0 98 0 96 0 99 Outdoor Fan Motor Full load amps 1 0 1 0 1 0 2 6 Locked rotor amps 1 9 1 9 1 9 CONTROLS iComfort E30 Smart Wi Fi Thermostat 15S63 Remote Outdoor Temperature Sensor X2658 OPTIONAL A...

Page 5: ...99 0 99 Outdoor Fan Motor Full load amps 2 6 2 6 2 6 CONTROLS iComfort E30 Smart Wi Fi Thermostat 15S63 Remote Outdoor Temperature Sensor X2658 OPTIONAL ACCESSORIES ORDER SEPARATELY Compressor Hard S...

Page 6: ...stripping of the various caps used the appropriately sized wrench should be used and fitted snugly over the cap before tightening TABLE 1 Torque Requirements Parts Recommended Torque Service valve cap...

Page 7: ...7 8 9 10 11 12 1 12 TURN To Access Service Port A service port cap protects the service port core from contamination and serves as the primary leak seal 1 Remove service port cap with an appropriately...

Page 8: ...ent of unit in relation to a window see the provided illustration in figure 3 detail A PLACING UNIT ON SLAB When installing unit at grade level the top of the slab should be high enough above grade so...

Page 9: ...be a Polyol ester oil The compressor is charged with sufficient Polyol ester oil for line set lengths up to 50 feet Recommend adding oil to system based on the amount of refrigerant charge in the sys...

Page 10: ...be used if line set is to be installed on exterior of outside wall PVC PIPE FIBERGLASS INSULATION CAULK OUTSIDE WALL VAPOR LINE WRAPPED WITH ARMAFLEX LIQUID LINE OUTSIDE WALL LIQUID LINE VAPOR LINE WO...

Page 11: ...dous to your health Avoid breathing vapors or fumes from brazing operations Perform operations only in well ventilated areas Wear gloves and protective goggles or face shield to protect against burns...

Page 12: ...SERVICE VALVE Flow regulated nitrogen at 1 to 2 psig through the low side refrigeration gauge set into the liquid line service port valve and out of the suction vapor line service port valve CUT AND D...

Page 13: ...tions for the next step in preparing the unit WHEN BRAZING LINE SET TO SERVICE VALVES POINT FLAME AWAY FROM SERVICE VALVE PREPARATION FOR NEXT STEP 7 WARNING 1 FIRE PERSONAL INJURY OR PROPERTY DAMAGE...

Page 14: ...ISTING INDOOR UNIT GAUGE MANIFOLD INVERTED CYLINDER CONTAINS CLEAN HCFC22 TO BE USED FOR FLUSHING LIQUID LINE SERVICE VALVE INLET DISCHARGE TANK RETURN CLOSED OPENED RECOVERY CYLINDER RECOVERY MACHINE...

Page 15: ...reads and expose surface of the Teflon ring with refrigerantoil E Attach the liquid line assembly to the expansion valve Finger tighten and use an appropriately sized wrench to turn an additional 1 2...

Page 16: ...gauge set Disconnect the HFC 410A cylinder C Connect a cylinder of dry nitrogen with a pressure regulating valve to the center port of the manifold gauge set D Adjust dry nitrogen pressure to 150 psig...

Page 17: ...r unit until the absolute pressure does not rise above 500 microns 29 9 inches of mercury within a 20 minute period after shutting off the vacuum pump and closing the manifold gauge valves F When the...

Page 18: ...to unit nameplate for minimum circuit ampacity and maximum overcurrent protection size 24VAC TRANSFORMER Use the transformer provided with the furnace or air han dler for low voltage control power 24...

Page 19: ...CY HEAT EMERGENCY HEAT RELAY OUTDOOR THERMOSTAT THERMOSTAT INDOOR UNIT OUTDOOR UNIT COMMON 1ST STAGE AUXILIARY HEAT INDOOR BLOWER COMPRESSOR COMMON 1ST STAGE AUXILIARY HEAT R E W O P V 4 2 R E W O P V...

Page 20: ...ressure switches Defrost Thermostat S6 The defrost thermostat is located on the liquid line be tween the check expansion valve and the distributor When defrost thermostat senses 42 F 5 5 C or cooler t...

Page 21: ...CONNECTIONS TEST PINS P1 Note Component locations vary by board manufacturer SENSOR CONNECTION COIL AND AMBIENT SENSORS P4 REVERSING VALVE O OUT DELAY PINS P5 LOW AMBIENT THERMOSTAT PINS P3 DEFROST T...

Page 22: ...of the defrost mode When a jumper is installed on the DELAY pins the compressor will be cycled off for 30 seconds going in and out of the defrost mode Units are shipped with jumper installed on DELAY...

Page 23: ...ature probe is de signed with a spring clip to allow mounting to the outside coil tubing The location of the coil sensor is important for proper defrost operation NOTE The demand defrost control accur...

Page 24: ...tem Remove any blockages or restrictions from coils and or fans Check indoor and outdoor fan motor for proper current draws Check system charge using subcooling method Check system operating pressures...

Page 25: ...e outdoor unit s coil should be performed by a trained service technician Contact your dealer and set up a schedule preferably twice a year but at least once a year to inspect and service your outdoor...

Page 26: ...ur dealer show you the location of the drain line and how to check for obstructions This would also apply to an auxiliary drain if installed Thermostat Operation See the thermostat homeowner manual fo...

Page 27: ...Page 27 Wiring and Sequence of Operation FIGURE 13 Typical Unit Wiring...

Page 28: ...Page 28 FIGURE 14 Typical Factory Wiring...

Page 29: ...emand cycle If the coil sensor temperature is still below the selected termination temperature the control will continue the defrost cycle until the cycle is terminated in one of the methods mentioned...

Page 30: ...um Fuse or Circuit Breaker Electrical Connections Tight Indoor Filter clean Supply Voltage Unit Off Indoor Blower RPM S P Drop Over Indoor Dry Outdoor Coil Entering Air Temp Discharge Pressure Vapor P...

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