DB31/ 640-2012
Energy efficiency limit value and energy efficiency grade of water source multi-connected air conditioner (heat pump) unit (English Version)

Standard No.

DB31/ 640-2012

Language

Chinese, Available in English version

Release Date

2012

Published By

Shanghai Provincial Standard of the People's Republic of China

Status

Withdraw 2021-03

Latest

DB31/ 640-2012

DB31/ 640-2012 history

• 2012 DB31/ 640-2012 Energy efficiency limit value and energy efficiency grade of water source multi-connected air conditioner (heat pump) unit