User guide

3 - Creating a Daikin VRV System
Page 15
Daikin VRV Systems Plugin
VE2012 User Guide
Opportunities for heat recovery can be further explored by recovering waste heat and using it in
areas where heat is required. Two examples of this are explained in the next section where the
inclusion of producing high temperature domestic hot water and also using air curtains attached to
the Daikin VRV system can significantly increase the efficiency of the building services within your
model.
DHW production
Daikin is renowned for its pioneering attitude towards technology and reusing waste heat to produce
DHW is an innovation that can further increase the efficiency of building services.
The system that is used within the VRV systems module is the Daikin HXHD series high temperature
domestic hot water unit and the simulation is based on the system providing 60 Deg C flow
temperatures (65 Deg C generation) with a 260 litre storage tank. In this configuration the tank can
be reheated from cold (10 deg C) in 1 hour.
The recommended simulation procedure is as follows:
Within the Apache System created for the Daikin
VRV system, select the Hot water tab and set up
the system to reflect the example shown
 Water inlet temperature assumed as 10
Deg C
 Hot Water supply temperature 60 Deg C
 Storage volume 260 litres
 Storage loss as 0.00577 kWh per litre per
day