Viessmann VITOCAL 350-A Installation And Service Instructions Manual page 19

Foundations: Type AWHO 351.A
Plan view
V
320
H
P
100
Fig. 10
Heat pump
A
B Concrete foundations (300 mm thick) consisting of:
■ Concrete slab C25/30, BSt 500 S and M
■ Reinforcement with all-round Q 257 A wire mesh
KG conduit DN 100 for connecting cables to the
D
heat pump control unit (on site):
Control cable 230 V~, extra low voltage (ELV) lead
< 42 V
Hydraulic connection set (accessories): Hydraulic
E
connection lines for heating water flow and heating
water return
Condensate drain DN 40 (on site)
G
Installation preparations for heat pumps installed outdoors
(cont.)
340
315
b
G
M E D
a
W
390
B A
L
100
H
400
Soft ground, gravel or crushed stone
H
Routing direction of pipe from hydraulic connection
L
set: Towards the front
Heat pump power cable
M
Underground channel
P
V Recess in the foundations for routing the lines for
heating water flow and return, the condensate
drain and the connecting cables (extra low voltage
(ELV) leads and control cables) as well as the
power cable to the control panel
Routing direction of pipe from hydraulic connection
W
set: Towards the back
19