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4-48
Service Manual
MAINTENANCE
4.1.19 Removing
Transformer
[460V] (H,Y)VAHP***B41S and (H,Y)VAHR***B41S Only
Before this work, remove the transformer box according to Section 4.1.8 “Removing Transformer Box”.
Remove the transformer box cover according to Section 4.1.7 “Removing Transformer Box Cover”.
(1) Disconnect all the wirings to the terminal block of transformer.
(2) Remove six six screws securing the metal plates while assembling the transformer box.
(3) Remove the metal plate assembly from the transformer.
(4) Remove four screws securing the transformer so the transformer can be removed.
TURN OFF all power source switches.
Tool
Phillips Screwdriver
Transformer
Terminal
Block
Metal Plate Assy.
Front View
Rear View
Summary of Contents for YVAHP072B31S
Page 2: ......
Page 10: ...viii Service Manual ...
Page 16: ......
Page 17: ...Service Manual 1 1 INSTALLATION 1 Installation ...
Page 577: ...Service Manual 1 561 INSTALLATION 9 Touch Back to return to the Service Menu screen 9 ...
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Page 921: ...Service Manual 2 1 OPERATION 2 Operation ...
Page 1315: ...Service Manual 3 1 TROUBLESHOOTING 3 Troubleshooting ...
Page 1461: ...Service Manual 4 1 MAINTENANCE 4 Maintenance ...
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Page 1729: ...Service Manual 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions ...
Page 1738: ...6 10 Service Manual FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A ft 3 l b ...
Page 1739: ...SERVICE PARTS LIST Service Manual 7 1 7 Service Parts List ...
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Page 1796: ... 2015 Johnson Controls Inc SM 15001 ...