Installation and Maintenance Manual
Table Of Contents
- Warnings, Cautions and Notices
- Model Number Description
- General Information
- Pre-Installation
- Unit Dimensions/Weights
- Installation - Mechanical
- Location Requirements
- Rigging
- Evaporator Piping
- Condenser Water Piping (RTWD Units Only)
- Refrigerant Relief Valve Venting
- RTUD Installation
- System Configuration
- Equivalent Line Length
- Liquid Line Sizing
- Discharge (Hot Gas) Line Sizing
- Example
- Refrigerant Charge Determination
- RTUD Chilled Water Flow Control
- Oil Charge Determination
- Outdoor Air Temperature Sensor Installation Requirements
- Fan Control for the Remote Air Cooled Condenser
- RTUD Condenser Elevation Setting
- Shipping Spacers
- Installation - Electrical
- RTWD/RTUD Operating Principles
- Controls Interface
- Pre-Start Checkout
- Unit Start-Up Procedures
- Unit Shutdown
- Service and Maintenance
- Diagnostics
- Wiring Schematics

Controls Interface
RLC-SVX09H-EN 163
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Replacing or Adding Devices
If a device is communicating but incorrectly configured, it
might not be necessary to replace it. If the problem with
the device is related to communication, attempt to rebind
it, and if the device becomes correctly configured, it will
then communicate properly.
If a device that needs to be replaced is still communicating,
it should be unbound. Otherwise, it will be necessary to
rebuild the CH530 network image for Binding View to
discover that it has been removed. An unbound device
stops communicating and allows a new device to be
bound in its place.
It is good practice to turn the power off while detaching
and attaching devices to the CH530 network. Be sure to
keep power on the service tool computer. After power is
restored to the CH530 network, the reconnect function in
BindingView restores communication with the network. If
the service tool computer is turned off, you must restart
TechView and Binding View.
If a device is not communicating, the binding function
displays a window to request manual selection of the
device to be bound. Previously-selected devices are
deselected when the function starts. When manual
selection is confirmed, exactly one device must be
selected; if it is the correct type, it is bound. If the desired
device cannot be selected or if multiple devices are
accidentally selected, you can close the manual selection
window by clicking on No and repeat the bind function.
Fan Configurations
The configurations discussed below are accessible using
TechView ServiceTool – View - Configurations, and only
applicable for UnitType (MODL) configuration = RTUD.
Conversely, the following configuration items are not
visible if UnitType (MODL) is set to = RTWD.
A/C Fan Controls
This configuration item is used to define the RTUD fan
control type including alternate operation as a water
cooled instead of an air cooled condenser.
Figure 66. Binding view
Figure 67. Fan configurations - RTUD