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
RLC-SVX09H-EN 171
Unit Start-Up Procedures
Sequence of Operation
Power Up
The Power up chart shows the respective DynaView
screens during a power up of the main processor.This
process takes from 30 to 50 seconds depending on the
number of installed Options. On all power ups, the
software model will always transition through the
'Stopped' Software state independent of the last mode. If
the last mode before power down was 'Auto', the
transition from 'Stopped' to 'Starting' occurs, but it is not
apparent to the user.
Power Up to Starting
The Power up to starting diagram shows the timing from
a power up event to energizing the compressor.The
shortest allowable time would be under the following
conditions:
1. No motor restart inhibit
2. Evaporator Water flowing
3. Condenser Water flowing (RTWD only)
4. Power up Start Delay setpoint set to 0 minutes
5. Adjustable Stop to Start Timer set to 5 seconds
6. Need to cool
The above conditions would allow for a minimum power
up to starting compressor time of 95 seconds.
Figure 75. Power up