Si-93
Control Functions
Control Functions
19
1. Control Functions
1.1
List of Control Functions
Note:
Note 1
Requires optional humidifier and optional printed circuit board (KRP50-2 : Wiring adapter for remote
contact).
Classification
Function name
Outline of function
1. Basic functions
(functions related to
basic performance)
1.1 Ventilation
operation control
function
Controls supply air fan motor, exhaust air fan motor and damper
motor.
1.2 Abnormality
control function
Detects abnormalities in thermistor, damper motor and data
transmission to prevent errors.
2. Additional functions 2.1 Ventilation mode
changeover function
Operates equipment in selected ventilation mode (total heat
exchange, normal, automatic).
2.2 Automatic
ventilation operation
function
Selects the most suitable ventilation mode by controlling
damper motor according to temperature controller mode,
temperature setting and thermistor data.
2.3 Ventilation
capacity changeover
function
Operates equipment at set airflow rate.
2.4 Humidifier
operation control
function
Controls humidifier output based on temperature controller
judgment.
Note 1
2.5 Pre-cool/pre-heat
function
Prevents equipment operation for a preset time (set time) after
air conditioner is turned on.
2.6 Freshup function
Sets motor tap so that supply air fan airflow rate is larger than
exhaust air fan airflow rate.
2.7 Filter sign function Stores cumulative operation hour data and turns on air filter
cleaning indicator.
3. System control
functions
3.1 Remote controller
function
Operates equipment according to instructions from remote
controller.
3.2 Group function
Operates two or more units based on instructions from single
remote controller.
3.3 Air conditioner link
function
Follows air conditioner ON/OFF instructions.
3.4 Power ON
operation function
Operates equipment when power is turned on.
3.5 External link
operation function
Turns equipment on and off according to external link terminal
signal (no-voltage contact a).
3.6 Centralized
control function
Allows remote control operation by centralized control
equipment.
3.7 Timer function
Turns equipment on and off at set time.
4. Other support
functions
4.1 Troubleshooting
function
Displays error codes to indicate locations of error.
4.2 Field setting
function
Allows initial setting from LCD remote controller.
Summary of Contents for VAM 500EJ
Page 5: ...Si 93 iv Table of Contents...
Page 7: ...Introduction Si 93 vi 1 1 1 Cautions in Repair Warning...
Page 8: ...Si 93 Introduction vii...
Page 11: ...Si 93 2 General Constructions...
Page 15: ...Si 93 6 Operation...
Page 21: ...Si 93 12 Maintenance...
Page 27: ...Si 93 18 Control Functions...
Page 35: ...Si 93 26 Circuit Operations...
Page 39: ...Si 93 30 Troubleshooting...
Page 59: ...Troubleshooting Si 93 50 Troubleshooting...
Page 61: ...Si 93 52 Supplementary Explanation...
Page 72: ...Si 93 Appendix 63 Part 8 Appendix 1 Appendix 65 1 1 Wiring Diagram 65...
Page 73: ...Si 93 64 Appendix...
Page 74: ...Si 93 Appendix Appendix 65 1 Appendix 1 1 Wiring Diagram VAM500EJVE VAM800EJVE VAM1000EJVE...
Page 75: ...Appendix Si 93 66 Appendix VAM2000EJVE...
Page 79: ...Si 93 iv Index...
