4
RTAA-IOM-3
77 Operating Principles -
Mechanical
77 General
77 Refrigeration (Cooling) Cycle
77 — Cycle Description
77 — Compressor Description
77 — Compressor Motor
77 — Compressor Rotors
77 — Compressor Loading Sequence
82 Oil System Operation
82 — Overview
82 — Domestic Water Heater
83 — Oil Separator
83 — Compressor Bearing Oil Supply
83 — Compressor Rotor Oil Supply
84 — Slide Valve Movement
84 — Oil Filter
84 —Condenser Fans
87 Operating Principles -Adaptive
Control
™
Microprocessor Logic
87 General
87 Digital Display
93 — Menus
99 — Chiller Switch
100 Menu Function Descriptions and
Selection
100 — Selecting Variables and Options
100 — Menu 0 - Operating Display
100 — Menu 1 - Service #1 Display
101 — Menu 2 - Service #2 Display
101 — Menu 3 - Auxiliary Options
102 — Menu 4 - Factory Display #1
104 — Menu 5 - Factory Display #2
105 Operational Features
105 — Entering Evaporator Water
Temperature
105 — Current Limit Setpoint
105 — Low Ambient Lockout
105 — Electronic Expansion Valve
(EXV) Test
105 — Current Overload Protection
105 — Leaving Chilled Water
Temperature Control
106 — Chilled Water Reset (CWR)
107 — Leaving Water Temperature
Cutout
107 — Low Refrigerant Temperature
Cutout
107 — Low Ambient Temperature Start
107 — Low Refrigerant Temperature
Cutout Retry
108 — Auto Lead/Lag
108 — Phase Imbalance Protection
108 —Reverse Rotation Protection
108 DIP Switch Settings
108 Compressor Overload DIP
Switches
108 IPC Address
108 — 2-10 VDC/4-20 mA Input for
(CWS) and (CLS)
109 Diagnostics and Troubleshooting
109 —Mechanical Control Settings
121 Pre-Start Check-out
121 General
122 Unit Voltage Power Supply
122 Unit Voltage Imbalance
123 Unit Voltage Phasing
124 Water System Flow Rates
124 Water System Pressure Drop
124 UCM Set-up
125 Start-up Procedures
125 General
125 System Superheat
125 System Subcooling
129 Unit Shutdown Procedures
129 Temporary Shutdown and Restart
129 Extended Shutdown Procedure
130 System Restart After Extended
Shutdown
131 Periodic Maintenance
131 General
133 Refrigerant Emission Control
133 Weekly Maintenance
134 Monthly Maintenance
134 Annual Maintenance
135 Maintenance
135 General
135 Coil Cleaning
135 Chemically Cleaning the
Evaporator
135 Domestic Water Heater –
Tube Cleaning
136 Water Treatment
136 Oil Separator Level Check
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