5-2. Service access diagrams
Service access
Parameter
a
b
c
d
Suffi cient space MUST be left for the provision of discharge pipework as
detailed in National and Local building regulations.
The hydrobox must be located indoors and in a frost-free environment,
for example in a utility room.
Dimension (mm)
200
150
500
500
11
a
b
b
d
c
Service access