York XA Series Скачать руководство пользователя страница 40 | Manualshive

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5168274-BIM-I-1121

40

Johnson Controls Ducted Systems

Charging The Unit

Figure 20: XA-15 (15 Ton) Charging Chart

Figure 21: XA-20 (20 Ton) Charging Chart

200

250

300

350

400

450

500

550

100

110

120

130

140

150

160

170

Discharge

Pressure

(psi)

Suction Pressure (psi)

15-Ton Charging Chart

Cooling mode

115º

105º

95º

85º

75º

65º

Outdoor Temp (ºF)

1. Make sure that both condenser fans are running when charging. One fan may switch off at lower
ambient temperatures making the chart above inaccurate.
2. This chart is applicable to unit with the TXV's left to the factory setting. If the TXV's have been
adjusted in the field, the charging chart may no longer apply.

200

250

300

350

400

450

500

550

100

110

120

130

140

150

160

170

Discharge

Pressure

(psi)

Suction Pressure (psi)

20-Ton Charging Chart

Cooling mode

115º

105º

95º

85º

75º

65º

Outdoor Temp (ºF)

1. Make sure that all four condenser fans are running when charging. Two fans may switch off at
lower ambient temperatures making the chart above inaccurate.
2. This chart is applicable to unit with the TXV's left to the factory setting. If the TXV's have been
adjusted in the field, the charging chart may no longer apply.

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Содержание XA Series

Страница 1: ...XA 15 XA 20 Physical Data 21 8 Electric Heat Minimum Supply Air 22 9 Smart Equipment Economizer Board Details 25 10 Altitude Temperature Correction Factors 30 11 Air Flow Performance Side Duct Applica...

Страница 2: ...other applicable safety precautions and codes including ANSI Z223 1 or CSA B149 1 latest edition Wear safety glasses and work gloves Use quenching cloth and have a fire extinguisher available during b...

Страница 3: ...t your local Ducted Systems parts distribution center for authorized replacement parts Approvals Design certified by CSA as follows 1 For use as a Heat Pump unit with supplemental electric heat 2 For...

Страница 4: ...ys Single Zone N Verasys Change Over Bypass P Verasys VAV Controls Option 15 20 Ton Model Number Nomenclature 00 00 Cooling Only A B Standard Static D High Static E VFD VAV Std Static G VFD VAV High S...

Страница 5: ...dian Electrical Code CSA C22 1 2 Installation Codes CSA B149 1 3 Local plumbing and waste water codes and 4 Other applicable local codes Refer to unit application data found in this document If compon...

Страница 6: ...60 5 432 504 125 575 3 60 5 540 630 125 Smart Equipment Control Board 110 Volt Convenience Outlet Powered or Non Powered Optional Disconnect Location Optional Disconnect Switch Bottom Power and Contr...

Страница 7: ...to Table 4 for clearances required for combustible construction servicing and proper unit operation Rigging And Handling Exercise care when moving the unit Do not remove any packaging until the unit i...

Страница 8: ...Weight Figure 6 Center of Gravity A D B C A D E C F B A B C D FRONT A C D F B E FRONT Table 2 XA 15 XA 20 Unit Weight Size Tons Model Weight lbs Center of Gravity 4 Point Load Location lbs 6 Point Loa...

Страница 9: ...ont 3 4 NPS Fem Bottom B 3 5 8 KO Power Wiring Front 3 NPS Fem Bottom 6 7 8 A CONTROL WIRING ENTRY COIL GUARD KIT CONDENSER COILS B POWER WIRING ENTRY 5 43 3 4 9 3 4 35 5 7 8 136 1 4 DOT PLUG For pres...

Страница 10: ...roper size of the supply and return air duct connections UNIT BASE WITH RAILS Shown separately to illustrate Bottom Duct openings and Power Connection locations 12 1 2 9 1 4 8 1 8 9 3 4 3 3 4 B POWER...

Страница 11: ...ncludes a power exhaust option The covering consists of a heavy black paper composition 3 Replace the side supply and return air compartment panels For side duct applications 1 Replace the side panels...

Страница 12: ...may be installed on combustable floors made from wood or class A B or C roof covering materials 0 Rear 24 W O Economizer Left 24 W O Economizer 49 W Economizer 36 W Economizer 3 3 If economizer is fac...

Страница 13: ...ges to insure adequate sealing Adjusting the damper to the desired air flow may be done before mounting the hood into position or after installation by removing the front hood panel or the screen on t...

Страница 14: ...essor terminals during starting and running conditions are indicated on the unit Rating Plate and Table 1 The internal wiring harnesses furnished with this unit are an integral part of the design cert...

Страница 15: ...tions enclosed with thermostat for general installation procedure Color coded insulated wires should be used to connect the thermostat to the unit Refer to Table 5 for control wire sizing and maximum...

Страница 16: ...Y1 G OCC Y2 X R SD 24 C W1 2 24V C 24 VAC Class 2 SD 24 Jumper Located on Harness Smoke Detector SD R 24V Output R If No Smoke Detector If Smoke Detector Is Used R Occ Jumper Smart Equipment Control...

Страница 17: ...100 19 2 15 6 5 0 NONE 38 3 50 E18 18 1 21 7 65 3 70 E36 36 2 43 3 65 3 70 E54 54 2 65 73 1 80 E72 72 2 86 6 94 7 110 575 3 60 9 78 14 1 6 5 2 0 NONE 28 7 35 E18 18 1 17 3 50 3 60 E36 36 2 34 6 50 3 6...

Страница 18: ...4 2 129 9 158 7 175 E72 72 2 173 2 202 225 460 3 60 12 2 100 19 2 15 6 5 5 NONE 43 3 50 E18 18 1 21 7 70 3 80 E36 36 2 43 3 70 3 80 E54 54 2 65 79 3 90 E72 72 2 86 6 101 110 575 3 60 9 78 14 1 6 5 2 4...

Страница 19: ...137 6 150 E54 54 2 129 9 154 2 175 E72 72 2 173 2 197 5 225 460 3 60 12 2 100 19 2 15 9 7 0 NONE 41 5 50 E18 18 1 21 7 68 5 70 E36 36 2 43 3 68 5 70 E54 54 2 65 77 1 90 E72 72 2 86 6 98 7 110 575 3 60...

Страница 20: ...50 E54 54 2 129 9 166 7 175 E72 72 2 173 2 210 225 460 3 60 12 2 100 19 2 15 9 7 5 NONE 46 5 50 E18 18 1 21 7 73 5 80 E36 36 2 43 3 73 5 80 E54 54 2 65 83 3 90 E72 72 2 86 6 105 110 575 3 60 9 78 14 1...

Страница 21: ...Capacity Btu hr 99 000 136 000 System power KW COP 13 62 2 05 20 96 2 05 DIMENSIONS inches Length 136 1 4 180 19 32 Width 92 92 Height 52 5 8 52 5 8 OPERATING WT lbs 2140 2650 COMPRESSORS Type Scroll...

Страница 22: ...drive the economizer including minimum position free cooling economizer loading and minimum outdoor air supply Economizer Minimum Position The economizer minimum position is set during occupied mode w...

Страница 23: ...modulate to control the supply air temperature to the Economizer Setpoint If the supply air temperature cannot be maintained within 5 F of the economizer setpoint the first stage compressor C1 will b...

Страница 24: ...ation Operation details include a Compares economizer output to the Economizer Damper Position For Exhaust Fan On and OFF b Energizes exhaust fan when economizer output is above Economizer Damper Posi...

Страница 25: ...mistor MAT parameter reports input status F C 3 65 VDC reading MAT to COM with open circuit Read only use in current control revision IN1 MAT LEDs at left on upper edge of economizer board POWER POWER...

Страница 26: ...power exhaust actuator and economizer actuator Connects through circuit trace to 24V IN pin HOT ECON 2 10 VDC output for the Economizer actuator Econ parameter reports output status 0 100 Used to posi...

Страница 27: ...negative for the indoor air quality sensor Connects through circuit trace to 24V IN pin COM R 24V 24 VAC hot supplied for the outdoor air quality sensor Connects through circuit trace to 24V IN pin HO...

Страница 28: ...panel from the unit Loosen but do not remove the two panel latches Locate the economizer actuator where the following adjustment can be made With power exhaust option each building pressurization req...

Страница 29: ...creases In order to use the indoor blower tables for high altitude applications certain corrections are necessary A centrifugal fan is a constant volume device This means that if the rpm remains const...

Страница 30: ...iven is at an elevation of 5 000 ft The first step is to convert this static pressure to equivalent sea level conditions Sea level static pressure 1 5 832 1 80 Enter the blower table at 6000 sCFM and...

Страница 31: ...5 0 HP motor The 7 5 HP motor is required 6 1020 RPM is within the range of the 7 5 HP drives 7 Using the 7 5 HP motor and drive 3 5 turns open will achieve 1020 RPM Example Supply Air Blower Performa...

Страница 32: ...880 5 52 916 5 90 954 6 27 992 6 61 1030 6 94 1067 7 26 1103 7 58 7 5 HP Field Supplied Drive XA 20 20 Ton Side Duct Air Flow CFM Available External Static Pressure IWG1 1 Blower performance includes...

Страница 33: ...7 49 7600 852 4 73 885 5 21 920 5 63 956 6 01 992 6 36 1027 6 68 1063 6 98 1097 7 27 1130 7 56 7 5 HP Field Supplied Drive XA 20 20 Ton Bottom Duct Air Flow CFM Available External Static Pressure IWG...

Страница 34: ...e actual CFM through the unit can be determined from the curve in Pressure Drop vs Supply Air CFM Figure 19 After readings have been obtained remove the tubes and reinstall the two 5 16 dot plugs that...

Страница 35: ...tment Figure 17 4 Tighten blower pulley and motor sheave set screws after any adjustments Re check set screws after 10 12 hours run time recommended Belt drive blower systems MUST be adjusted to the s...

Страница 36: ...ower is energized whenever a cooling or heating operation is requested The blower is energized after any specified delay associated with the operation When energized the indoor blower has a minimum ru...

Страница 37: ...it is affected by the fault as well The unit control board monitors the temperature limit switch of electric heat units Compressor Protection In addition to the external pressure switches the compress...

Страница 38: ...emperature conditions must call for defrost continuously for 4 1 2 minutes before another defrost cycle is initiated A temperature inhibit feature prohibits defrost if the coil temperature is above 40...

Страница 39: ...Instructions 1 Turn unit electrical power on 2 Set the room thermostat setting to lower than the room temperature 3 First stage compressors will energize after the built in time delay five minutes 4...

Страница 40: ...naccurate 2 This chart is applicable to unit with the TXV s left to the factory setting If the TXV s have been adjusted in the field the charging chart may no longer apply 200 250 300 350 400 450 500...

Страница 41: ...ressure grease gun pump grease Chevron SRI 2 or equivalent into the bearing cavity until new grease shows at the open port Do not over lubricate Run the motor for ten minutes until excess grease is pu...

Страница 42: ...microprocessor connects through circuit trace to the SD 24 terminal SD 24 24 VAC hot out for factory accessory smoke detector condensate overflow and or user shutdown relay switching in series Connec...

Страница 43: ...t indicates 24 VAC is present at C and 24V terminals FAULT Red hard lockout networking error and firmware error indicator 1 2 second on off flashing indicates one or more alarm is currently active 1 1...

Страница 44: ...2 with open circuit Used in suction line temperature safety Pinned connections on right edge of UCB RAH Return Air Humidity input from 0 10 VDC 0 100 RH sensor Input required for reheat units optional...

Страница 45: ...r contactor coil indoor blower VFD enable relay coil Output with heat cool operation G input or schedule demand C1 24 VAC hot output for compressor 1 If demand is present and permissions allow compres...

Страница 46: ...er of the board Posi tive of the 15 VDC reading to C circuit for powering an optional netstat and or MultiTouch gateway C Common for SA BUS power and communication circuits Also incorporated in the J8...

Страница 47: ...indicates the UCB is supplying power to the communication sub board 1 When wiring unit and other devices using the SA Bus and FC Bus see Table 20 Table 19 Smart Equipment UCB Details Continued Descri...

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