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COMPRESSOR #2

COMPRESSOR #1

COMPRESSOR #4

COMPRESSOR #3

5012886-YIM-B-0517

20

Johnson Controls Unitary Products

2.

Terminals Y1 and Y2 of the Smart Equipment™ control 
board (UCB 2) controlling System 2, should be connected 
to stages 3 and 4 of the 4 stage thermostat.

Smart Equipment™ Control Board 
Navigation Components

The following components are needed to access the control 
points in the Simplicity® SE control. Installation and operation 
guides are located on www.upgnet.com under Product Center \ 
Equipment Catalog \ Commercial Products \ Zoning Systems 
and Controls.

1.

Local LCD on Unit Control Board.

2.

Mobile Access Portal (MAP) Gateway (Portable). 

• Source 1 P/N S1-JC-MAP1810-OP

3.

MAP Gateway Quick Start Guide P/N 24-10737-16

4.

MAP Gateway Instruction P/N 24-10737-8

NOTE: 

For more in-depth sequence of operation of the 
Simplicity® SE control please refer to LIT-12011950 on 
www.upgnet.com under Product Center \ Equipment 
Catalog \ Commercial Products \ Zoning Systems and 
Controls.

Normal Maintenance

Periodic maintenance consists of changing or cleaning filters 
and general cleaning of the outdoor coil.

MOTORS -

 Outdoor fan motors are permanently lubricated and 

require no maintenance.

OUTDOOR COIL -

 Dirt should not be allowed to accumulate on 

the outdoor coil surface or other parts in the air circuit. Cleaning 
should be as often as necessary to keep the coil clean. Use a 
brush, or other suitable means. Be sure to disconnect power to 
the unit prior to cleaning.

Troubleshooting

Figure 12: Compressor Location

Prior to any of the following maintenance procedures, 
shut off all power to the unit, to avoid personal injury.

Exercise care when cleaning the coil so that the coil fins 
are not damaged.
Do not permit the hot condenser air discharge to be 
obstructed by overhanging structures or shrubs.

Troubleshooting of components necessarily requires 
opening the electrical control box with the power 
connected to the unit. Use extreme care when working 
with live circuit! Check the unit nameplate for the correct 
range before making any connections with line 
terminals.

The wire number or color and terminal designations 
referred to may vary. Check the wiring label inside the 
control box access panel for the correct wiring.

Summary of Contents for YD480 Series

Page 1: ...Unit 9 6 Unit Dimensions Inches 14 7 Piping And Electrical Connection Sizes 30 40 50T Inches 16 8 Electrical Power Knockout Sizes Inches 16 9 Smart Equipment UCB Details 23 LIST OF FIGURES 1 Corner We...

Page 2: ...50 Ton C00 Cooling Only Product Options AA None TA Technicoat Condenser Coil Installation Options A None 2 208 230 3 60 4 460 3 60 5 575 3 60 Configured Split Condenser Model Number Nomenclature A St...

Page 3: ...n the carrier s freight bill A separate request for inspection by the carrier s agent should be made in writing Improper installation may create a condition where the operation of the product could ca...

Page 4: ...em Scroll Tandem Scroll Quantity 2 2 2 Cooling Nominal Capacity Tons System 1 15 20 25 System 2 15 20 25 Capacity Stages System 1 2 2 2 System 2 2 2 2 SYSTEM DATA No Refrigeration Circuits 2 2 2 Sucti...

Page 5: ...ngth to support the unit The condensing unit must be mounted on level supports The supports can be channel iron beams or wooden beams treated to reduce deterioration Minimums of two 2 beams are requir...

Page 6: ...on of vibration Holes are provided in the base rails for bolting the unit to its foundation For ground level installations precautions should be taken to protect the unit from tampering and unauthoriz...

Page 7: ...of the unit When preparing to move the unit always determine the center of gravity see Table 3 and Figure 1 of the unit in order to equally distribute the weight Slings connected to the compressor end...

Page 8: ...to compressor replacement repairing refrigerant leaks replacing refrigerant components such as filter drier pressure switch metering device or coil Units are shipped with compressor mountings which ar...

Page 9: ...3 60 1 1 2 4 2 9 63 5 70 575 3 60 4 9 0 14 78 575 3 60 1 1 2 4 2 2 47 1 50 YD480 208 230 3 60 4 30 1 47 225 208 230 3 60 1 1 2 4 5 8 151 1 175 460 3 60 4 16 7 26 114 460 3 60 1 1 2 4 2 9 82 6 90 575 3...

Page 10: ...emperatures must also be insulated Never solder suction and liquid lines together They can be taped together for convenience and support purposes but they must be completely insulated from each other...

Page 11: ...ctions of the main lines Connect the main liquid line to the liquid line connection on the evaporator unit while maintaining a flow of nitrogen Make the suction line connection at the evaporator and r...

Page 12: ...Line Solenoid Wiring NOTE For applications on airhandlers evaporator DX coils other than ND360 600 certified matchups liquid line solenoids may be required for proper operation and refrigerant system...

Page 13: ...On non ND models isolation relays must be installed to avoid overloading on 75 VA transformer on condensing unit Non ND units may not include any or all of the components required to wire the unit Use...

Page 14: ...4 Johnson Controls Unitary Products Figure 6 YD Unit Dimensions Table 6 Unit Dimensions Inches MODEL A B C D E F G H YD360 128 5 88 5 37 5 41 8 40 0 46 1 37 1 23 6 YD480 128 5 88 5 57 7 41 8 40 0 46 1...

Page 15: ...183 2 313 88 140 22 358 20 858 19 358 37 518 12 878 9 628 5012886 YIM B 0517 Johnson Controls Unitary Products 15 Figure 7 30 Ton Power And Control Wiring Connections Figure 8 40 50 Ton Power And Cont...

Page 16: ...NTRY SIZE SUCTION LINE SYS 1 1 5 8 OD LIQUID LINE SYS 1 7 8 OD SUCTION LINE SYS 2 1 5 8 OD LIQUID LINE SYS 2 7 8 OD POWER WIRING KNOCKOUT SEE TABLE 8 CONTROL WIRING 7 8 HOLE Table 8 Electrical Power K...

Page 17: ...ent clearances been provided 2 Has all foreign matter been removed from the interior of the unit tools construction or shipping materials etc 3 Have the condenser fans been rotated manually to check f...

Page 18: ...minute If it fails to close the unit will shut down the associated compressor and begin an ASCD If the call for cool is still present at the end of the anti short cycle time delaying the control boar...

Page 19: ...of System 2 When the LPS of UCB 2 falls below its cut out point the PR2 relay brings on the 3LLS Solenoid allowing refrigerant in system 2 to return flow to the compressor for normal mechanical coolin...

Page 20: ...enance consists of changing or cleaning filters and general cleaning of the outdoor coil MOTORS Outdoor fan motors are permanently lubricated and require no maintenance OUTDOOR COIL Dirt should not be...

Page 21: ...cursor is on the top Status line hit the ENTER button This action steps the LCD display into the status mode Hit ENTER to view the status menu Press Enter Step 2 Scroll down to DVent Mode This is the...

Page 22: ...CANCEL JOY C PWR 7 7 77 Clg Engaged LeadLag Engaged Press Enter Joy Stick Down 2 Step 6 By toggling down twice the screen reaches the ClgOcc SP screen or Cooling Occupied Set Point ENTER CANCEL JOY C...

Page 23: ...mostat connection strip C and indoor blower VFD pin C 24V 24 VAC 75 VA transformer hot Powers the UCB microprocessor connects through circuit trace to the SD 24 terminal SD 24 24 VAC hot out for facto...

Page 24: ...hing in series Unit wiring harness jumper plug for factory shutdown accessories must be removed if the switching of field added external accessories for unit shutdown are wired between thermo stat con...

Page 25: ...ut from 10K 77 F Type III negative temperature coefficient thermistor Input required for 2 compressor heat pump units not required for 2 compressor A C units not active for 1 compressor units 3 625 VD...

Page 26: ...no input within 5 minutes from initiation of H1 output initiates an Ignition Failure alarm input for longer than 5 minutes without H1 output initiates a Gas Valve Mis wire alarm Pin Cooling and fan o...

Page 27: ...put is needed input must be present to allow FAN output and unit operation One FAN OVR trip lasting longer than 5 minutes or three FAN OVR trips in a two hour period cause a Fan Overload Lockout and u...

Page 28: ...munication circuit COM Common for the FC Field Connected BUS BACnet MSTP communication circuit Negative of the VDC FC bus BACnet MSTP communication circuit SHLD Shield for the FC Field Connected BUS B...

Page 29: ...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 Outdoor Air Entering Condenser F 300 350 400 450 500 550 600 120 130 140...

Page 30: ...scharge Pressure psi Suction Pressure psi Charging Curves 50 Ton 115 105 95 85 65 1 Make sure that all condenser fans are running when charging 2 This chart is applicable to unit with the TXV s left t...

Page 31: ...5012886 YIM B 0517 Johnson Controls Unitary Products 31 Typical Wiring Diagrams Figure 17 Typical 208 230 Volt YD360 480 600 Condensing Unit Wiring Diagram...

Page 32: ...5012886 YIM B 0517 32 Johnson Controls Unitary Products Typical Wiring Diagrams Figure 18 Typical 460 575 Volt YD360 480 600 Condensing Unit Wiring Diagram...

Page 33: ...ocedures are followed and checks are made at initial start up This confidence is supported by the 30 day dealer protection coverage portion of our standard warranty policy which states that Johnson Co...

Page 34: ...he equipment If the system is a VAV system the CFM will be the airflow when the remote VAV boxes are in the full open position and the frequency drive is operating at 60 HZ Do not proceed with the equ...

Page 35: ...ystem 2 Is Condenser below Evaporator Yes No Yes No Total Line Length end to end _______ Ft _______ Ft Vertical Lift in Ft _______ Ft _______ Ft Vertical Fall in Ft _______ Ft _______ Ft Number of Elb...

Page 36: ...t or change required to obtain the correct airflow Was it necessary to increase of decrease the airflow to meet the design conditions If the motor pulley size was changed measure the outside diameters...

Page 37: ...hird if equipped Fourth if equipped Heat Pump 1st Stage Outside air temperature ________________ db F ________________ wb F ________________ RH Return Air Temperature ________________ db F ___________...

Page 38: ..._______________________________ ________________________________________________________________________________________________________ _______________________________________________________________...

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