Carrier 25HNB5 Скачать руководство пользователя | Manualshive

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Содержание 25HNB5

Страница 1: ...ult in personal injury or death Before installing modifying or servicing system main electrical disconnect switch must be in the OFF position There may be more than 1 disconnect switch Lock out and tag switch with a suitable warning label IMPORTANT Always install the factory supplied liquid line filter drier Obtain replacement filter driers from your distributor or branch INSTALLATION RECOMMENDATI...

Страница 2: ... Fig 3 Tiedown Knockout Requirements On rooftop applications locate unit at least 6 in 152 4 ram above roof surface Operating Ambient The minimum outdoor operating ambient in cooling mode is 55 F 12 78 C without low ambient cooling enabled and the maximum outdoor operating ambient in cooling mode is 125 F 51 67 C The maximum outdoor operating ambient in heating mode is 66 F 18 89 C Elevate Unit Fi...

Страница 3: ...or Start Assist Yes Yes No Capacitor and Relay Crankcase Heater Yes Yes No Yes Evaporator Freeze Thermostat for non Infinity systems only No No Yes Isolation Relay for non Infinity systems only No No Liquid Line Solenoid Valve No See Long Line Application Guideline No Motor Master Control or Yes No No LowAmbient Switch for non Infinity systems only Support Feet Recommended No Recommended For tubin...

Страница 4: ...his caution may result in equipment damage or improper operation Installation of filter drier in liquid line is required Install Liquid Line Filter Drier Indoor Refer to Fig 5 and install filter drier as follows 1 Braze 5 in 127 ram liquid tube to the indoor coil 2 Wrap filter drier with damp cloth 3 Braze filter drier to 5 in 127 ram long liquid tube from step 1 4 Connect and braze liquid refrige...

Страница 5: ...D LUG Fig 7 Line Connections A91056 Connect Control Wiring Route 24v control wires through control wiring grommet and connect leads to control wiring See Thermostat Installation Instructions for wiring specific unit combinations Use No 18 AWG color coded insulated 35 C minimun 0 wire If thermostat is located more than 100 ft 30 48 m from unit as measured along the control voltage wires use No 16 A...

Страница 6: ...er system is evacuated fully open liquid and v or ser vice valves 2 nit is shipped with valve stem s closed and c s in stalled Replace stem c s after system is opened to refri gerant flow back seated Replace c s finger tight and tighten with wrench an additional 1 12 turn 3 Close electrical disconnects to energize system 4 Set room thermostat at desired temperature Be sure set point is below indoo...

Страница 7: ...or blower will run an additional 90 seconds to increase system efficiency Heating On a call for heating a standard thermostat non communicating makes circuits R Y and R G Circuit R Y energizes contactor starting outdoor fan motor and compressor Circuit R G energizes indoor blower relay starting blower motor on high speed Should temperature continue to fall R W2 is made through second stage room th...

Страница 8: ... Low Ambient Cooling When this unit is operating below 55 F 12 78 C outdoor temperature provisions must be made for low ambient operation Infinity Controlled low ambient cooling This unit is capable of low ambient cooling without a kit ONLY when using the Infinity control A low ambient kit is not required and the outdoor fan motor does not need to be replaced for Infinity controlled low ambient op...

Страница 9: ...dip switch for a non conmmnicating system or enabling it at the User Interface in an Infinity conmmnicating system Quiet Shift is a field selectable defrost mode that when activated will eliminate occasional compressor sound that could be heard at the start of defrost cycle and restart of heating cycle When the Quiet Shift is activated and a defrost is initiated the following sequence of operation...

Страница 10: ...s the control will energize the compressor contactor every 15 minutes If the thermal protector closes at the next 15 minute interval check the unit will resume operation If the thermal cutout trips for three consecutive cycles then unit operation is locked out for 4 hours and the appropriate fault code See Table 3 is displayed Contactor Shorted Detection If there is compressor voltage sensed when ...

Страница 11: ...pen flow Outdoor unit control board has failed Control board needs to be Control Fault 45 replaced Brown Out The control voltage is less than 15 5v for at least 4 seconds Com 46 pressor and fan operation not allowed until control voltage is a mini 24 v mum of 17 5v Verify control voltage Outdoor Air Temp 53 Outdoor air sensor not reading or out of range Ohm out sensor Sensor Fault and check wiring...

Страница 12: ...d hose when charging into suction line with compressor operating Manifold sets should be 700 psig high side and 180 psig low side with 550 psig low side retard Use hoses with 700 psig service pressure rating Leak detectors should be designed to detect HFC refrigerant Puron as with other HFCs is only compatible with POE oils Vacuum pumps will not remove moisture from oil Do not use liquid line filt...

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