3
Scholar V VAIVA Maintenance & Service Manual 10/2017 Rev.2
This is the safety alert symbol
. When you see this symbol on the Scholar unit and in the instruction manu-
als be alert to the potential for personal injury. Understand the signal word DANGER, WARNING and CAUTION.
These words are used to identify levels of the seriousness of the hazard.
DANGER
Failure to comply will result in death or severe personal injury and/or property damage.
WARNING
Failure to comply could result in death or severe personal injury and/or property damage.
CAUTION
Failure to comply could result in minor personal injury and/or property damage.
IMPORTANT
Used to point out helpful suggestions that will result in improved installation, reliability or
operation.
HEATING, VENTILATING AND AIR CONDITIONING EQUIPMENT
MAINTENANCE & SERVICE MANUAL
FOR SCHOLAR V HEAT PUMP & AIR CONDITIONER, MODEL VAIVA
TABLE OF CONTENTS
Chapter Description
Page
1.1
General Operation..............................................................................4
2.1
Ventilation System Calibration ...........................................................5
3.1 Maintenance.......................................................................................8
4.1
Function & Description of Primary Components ................................9
5.1
Operation Guide ...............................................................................17
6.1
Troubleshooting Recommendations ................................................34
7.1 Service .............................................................................................34
8.1
Sequence of Operation and HMI Screen Navigation .......................56
9.1
HMI Modes of Operation ..................................................................69
Appendix A HMI Fault Screens ...........................................................................72
Appendix B Electronic Expansion Valve (EEV) User Manual ..............................73
Appendix C Airxcel Commercial Group Limited Product Warranty ......................74
Appendix D Procedure for Filing a Warranty Claim .............................................75
