York Predator MagnaDRY DR120 - Reheat Control Board

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127878-YIM-C-1208

52 Johnson Controls Unitary Products

FIGURE 32 - REHEAT CONTROL BOARD

OCC

COM

HGRR

HGR

HUM

MODE

SELECTION

JUMPER

DEHUMIDISTAT

HARNESS

CONNECTION

Main Page

Table of Contents2
General5
Safety Considerations5
Inspection5
Reference6
Renewal Parts6
Approvals6
Nomenclature7
Installation8
Installation Safety Information8
Preceding Installation8
Unit Shipping Bracket8
Condenser Covering8
Compressor Section8
Limitations9
Predator Magnadry™ Dr090 & 120 Component Location10
Location11
Predator Magnadry™ Dr150 Component Location11
Rigging and Handling12
Dr090 & 120 Units 4 Point Load12
Dr150 Unit 4 Point Load12
Dr090 & 120 Units 6 Point Load12
Clearances13
Dr150 Unit 6 Point Load13
Unit Center of Gravity (Dr090, 120)13
Unit Center of Gravity - Dr15013
Unit Weights13
Dr090 & 120 Unit Dimensions14
Dr150 Unit Dimensions14
Convenience Outlet14
Bottom Duct Openings (from Above)15
Dr090 & 120 Rear Duct Dimensions16
Dr150 Rear Duct Dimensions16
Ductwork17
Duct Covers17
Predator® Roof Curb Dimensions17
Sunline™ to Predator® Transition Roof Curbs17
Condensate Drain18
Compressors18
Filters18
Side Panels with Hole Plugs18
Return Downflow Plenum with Panel18
Discharge Panel in Place18
Thermostat Wiring19
Power and Control Wiring19
Power Wiring Detail19
Typical Low Voltage Field Wiring20
Field Wiring Disconnect - Cooling Unit With/Without Electric Heat21
Field Wiring Disconnect-Cooling Unit with21
Gas Heat21
Electrical Data - Dr090 Without Powered22
Electrical Data - Dr090 with Powered Convenience Outlet22
Electrical Data - Dr120 W/O Pwrd Convenience Outlet23
Electrical Data - Dr120 W/Pwrd Convenience Outlet23
Electrical Data - Dr150 W/O Pwrd Convenience Outlet24
Electrical Data - Dr150 W/Pwrd Convenience Outlet24
Optional Electric Heat25
Physical Data25
Minimum Supply Air Cfm25
Optional Gas Heat26
Gas Piping26
Side Entry Gas Piping26
Bottom Entry Gas Piping26
Gas Connection27
Lp Units, Tanks and Piping27
Vent and Combustion Air28
Options/Accessories28
Electric Heat28
Motorized Outdoor Damper28
Economizer28
Power Exhaust28
Rain Hood29
Economizer and Power Exhaust Set Point Adjustments and Information29
Minimum Position Adjustment29
Enthalpy Set Point Adjustment29
Power Exhaust Damper Set Point (with or Without Power Exhaust)29
Indoor Air Quality Aq29
Enthalpy Set Point Chart30
Honeywell Economizer Control W721230
Phasing31
Blower Rotation31
Belt Tension31
Belt Adjustment31
Blower Performance Dr090 Side Flow32
Blower Performance Dr090 Side Flow Economizer33
Blower Performance Dr090 down Flow34
Blower Performance Dr090 down Flow Economizer35
Blower Performance Dr120 Side Flow36
Blower Performance Dr120 Side Flow Economizer37
Blower Performance Dr120 down Flow38
Blower Performance Dr120 down Flow Economizer39
Blower Performance Dr150 Side Flow40
Blower Performance Dr150 Side Flow Economizer41
Blower Performance Dr150 down Flow42
Blower Performance Dr150 down Flow Economizer43
Air Balance44
Checking Air Quantity45
Method One45
Method Two45
Dry Coil Delta P46
Supply Air Drive Adjustment47
Operation48
Sequence of Operations Overview48
Cooling Sequence of Operation49
Continuous Blower49
Intermittent Blower49
No Outdoor Air Options49
Economizer with Single Enthalpy Sensor49
Economizer with Dual Enthalpy Sensors49
Economizer with Power Exhaust49
Motorized Outdoor Air Dampers49
Cooling Operation Errors50
High-Pressure Limit Switch50
Low-Pressure Limit Switch50
Freezestat50
Low Ambient Cooling50
Safety Controls50
Compressor Protection51
Flash Codes51
Reset51
Reheat Mode Sequence of Operation51
Normal" Mode51
Alternate" Mode51
Reheat Control Board52
Dr090 and Dr120 Reheat Controls53
Dr150 Reheat Controls54
Electric Heating Sequence of Operations55
Electric Heat Operation Errors55
Temperature Limit55
Safety Controls55
Limit Switch (Ls)55
Flash Codes55
Reset55
Electric Heat Anticipator Setpoints55
Gas Heating Sequence of Operations56
Ignition Control Board56
First Stage of Heating56
Second Stage of Heating56
Retry Operation56
Recycle Operation56
Gas Heating Operation Errors56
Lock-Out56
Temperature Limit56
Flame Sense56
Gas Valve57
Safety Controls57
Limit Switch (Ls)57
Auxiliary Limit Switch (Als)57
Pressure Switch (Ps)57
Rollout Switch (Ros)57
Internal Microprocessor Failure57
Flash Codes57
Resets57
Gas Heat Anticipator Setpoints57
Start-Up (Cooling)58
Prestart Check List58
Pre-Start Check List58
Operating Instructions58
Post Start Check List58
Post Start Checklist58
Start-Up (Gas Heat)58
Lighting the Main Burners58
Typical Flame58
Gas Heat Anticipator Setpoints58
Shut down59
Manifold Gas Pressure Adjustment59
Checking Gas Input59
Natural Gas59
Gas Heat Stages59
Adjustment of Temperature Rise61
Burners/Orifices Inspection/Servicing61
Typical Gas Valve61
Charging Chart Dr09062
Charging Chart Dr12062
Troubleshooting63
Predator® Flash Codes63
Charging Chart Dr15063
Unit Control Board64
Unit Control Board Flash Codes64
Unit Control Board Option Setup65
Option Byte Setup65
Heat Delay Setup65
Heat Delay65
Ignition Control Flash Codes65
Reheat Control Board Flash Codes65
Basic Troubleshooting Flowchart66
Power on Flow Chart66
Trip Failure Flow Chart67
Cooling Troubleshooting Guide68
Gas Heat Troubleshooting Guide71

York Predator MagnaDRY DR120 - Reheat Control Board

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