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548J*14D installation instructions
Models:
548J*14D
1
34
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Troubleshooting
Install
RTU-MP System Control Wiring Diagram
Dimension
Configurable Inputs
Economizer Wiring
Economizer Hood Removal and Setup Factory Option
Controller Assembly
Heat Anticipator Settings
Outdoor Air Temperature OAT Sensor
Page 34
Image 34
548J*14D
34
Page 33
Page 35
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Page 33
Page 35
Contents
548J*14D SINGLE PACKAGE ROOFTOP HEAT PUMP
TABLE OF CONTENTS
Installation Instructions
WITH WITH PURONR R-410A REFRIGERANT SIZE
548J*14D
SAFETY CONSIDERATIONS
UNIT OPERATION AND SAFETY HAZARD
ELECTRICAL SHOCK HAZARD
Vertical Connections / Economizer Horizontal Connections / Economizer
Fig. 1 - Unit Dimensional Drawing - Size 14 Unit
548J*14D
C09895
Fig. 2 - Service Clearance Dimensional Drawing
INSTALLATION
Fig. 1 - Unit Dimensional Drawing - Size 14 Unit cont
Jobsite Survey
Curb-mounted installation
Step 2 - Plan for Sequence of Unit Installation
Table 1 - Operating Weights
Pad-mounted installation
548J*14D
Fig. 3 - Roof Curb Details
C10365
Step 6 - Rig and Place Unit
For Units with Accessory Electric Heaters
Step 5 - Field Fabricate Ductwork
Fig. 4 - Unit Leveling Tolerances
Fig. 6 - Retrofit Installation Dimensions
Step 7 - Convert to Horizontal and Connect Ductwork when required
Step 8 - Install Outside Air Hood
Economizer Hood Removal and Setup Factory Option
Fig. 10 - Damper Assembly
Fig. 9 - Economizer Wiring
Two Position Damper Hood Removal and Setup - Factory Option
548J*14D
Fig. 13 - Economizer Filter Installation
Step 9 - Install External Condensate Trap and Line
Fig. 11 - Indoor Coil Access Panel Relocation
Economizer Hood and Two-Position Hood
Fig. 15 - Condensate Drain Piping Details
Field Power Supply
Step 10 - Make Electrical Connections
Fig. 16 - Conduit into Factory Option Disconnect
Fig. 20 - Mounting Position for Field Disconnects up to 100A
Fig. 21 - Disconnect Switch and Unit All Units
Fig. 19 - Mounting Position for Field Disconnects over 100A
548J*14D
Fig. 22 - Power Wiring Connections Convenience Outlets
Units Without Factory-Installed Disconnect
Units with Factory-Installed Disconnect
ELECTRICAL OPERATION HAZARD
548J*14D
Fig. 24 - Unit Powered Convenience Outlet Wiring
Fig. 25 - Weatherproof Cover Installation
ELECTRICAL OPERATION HAZARD
Thermostat
Field Control Wiring
Factory-Option Thru-Base Connections
Fig. 26 - Thru-Base Connection Fittings
Electric Heaters
Heat Anticipator Settings
Fig. 28 - Thermostat Wire Routing
Unit without Thru-Base Connection Kit
Fig. 29 - Typical Component Location
Fig. 30 - Typical Single Point Installation
Single Point Boxes
Heater and Supplementary Fuses
Outdoor Air Enthalpy Control PNO 33CSENTHSW
Fig. 31 - Accessory Electric Heater Control Connections
Fig. 32 - Outside and Return Air Enthalpy Sensor Wiring
Return Air Enthalpy Sensor
Fig. 34 - 548J*14D Control Box Component Locations
RTU-MP Control System
Fig. 33 - RTU-MP Multi-Protocol Control Board
548J*14D
548J*14D
Fig. 35 - RTU-MP System Control Wiring Diagram
C10322
CONFIGURABLE INPUTS
Supply Air Temperature SAT Sensor
Table 2 - RTU-MP Controller Inputs and Outputs
548J*14D
Fig. 37 - T-55 Space Temperature Sensor Wiring
Outdoor Air Temperature OAT Sensor
Space Temperature SPT Sensors
Field Connections
Fig. 40 - RTU-MP T-56 Sensor Connections
Fig. 41 - Space Temperature Sensor Typical Wiring 33ZCT59SPT
33ZCSENCO2 - Typical Wiring Diagram
Indoor Air Quality CO2 sensor
33ZCSENCO2 Connections
Connecting Discrete Inputs
Fig. 43 - RTU-MP / Indoor CO2 Sensor
Outdoor Air Quality Sensor PNO 33ZCSENCO2 plus
Local Access
Communication Wiring - Protocols
Fig. 46 - RTU-MP Power Exhaust Connections
RTU-MP Troubleshooting
The LEDs on the RTU-MP show the status of certain functions
Fig. 48 - BACview 6 Handheld Connections
Table 3 - LEDs
548J*14D
System
Fig. 49 - Controller Assembly
Smoke Detectors
Controller
Fig. 51 - Typical Supply Air Smoke Detector Sensor Location
Smoke Detector Locations
Supply Air
Return Air without Economizer
Fig. 54 - Return Air Sensor Operating Position
Completing Installation of Return Air Smoke Sensor
Fig. 53 - Return Air Detector Shipping Position
Additional Application Data
NOTE See page 32 for table legend and notes
Table 4 - Unit Wire/Fuse or HACR Breaker Sizing Data
548J*14D
HIGH
548J*14D
Table 4 - Unit Wire/Fuse or HACR Breaker Sizing Data cont
HIGH
EconoMi$er IV Occupancy Switch
Step 11 - Adjust Factory-Installed Options
Fig. 55 - EconoMi$ert IV Wiring
Legend and Notes for Table
Pre-Start and Start-Up
Step 12 - Install Accessories
548J*14D
548J*14D
548J*14D
Edition Date 01/11
548J*14D
Catalog No. II548J---07
Replaces II548J
