Compartment Clearances; Example Layouts; Unmixed Central Heating With Radiators - Bosch Worcester Greenstar HIU E Installation And Maintenance Instructions Manual

Pre-installation requirements
4.6.4

Compartment clearances

If the appliance is to be fitted in a compartment, the following minimum
clearances for the compartment dimensions apply. This is in addition to
the normal installation and servicing clearances.
• All service pipe work to the heat interface unit MUST be insulated
when installed within a ventilated compartment.
• If the ambient temperature within the compartment exceeds 30 °C
then it is recommended to make provision for ventilation.
– Ventilation openings must be provided at the front of the
compartment at the lower and upper positions. Each opening
must have a minimum size of 300mm by 80mm, 240cm
area.
Fig. 12 Minimum compartment clearances
Minimum Installation and Maintenance clearances
Description
1 Compartment height
4 Compartment width
5 Above the appliance
6 Either side of appliance
7 Below the appliance
8 Compartment depth
9 Appliance to removable door
20
4.7
4.7.1
2
free
Fig. 13
Option 1: Control of radiator heating system with Sense II (EMS
controller) example
Fig. 14
Dimensions (mm)
930
Connections/
450 Symbol
30
5
200
290
20
Option 2: Control of radiator heating system with 230V
programmable room thermostat example
Fig. 15
Connections/
Symbol
LR

Example layouts

Unmixed central heating with radiators

Function
Sense II connection
EMS
• EMS2 Room control
2 1 – Not polarity sensitive
Outdoor temperature sensor
• Not polarity sensitive
2 1
Function
230 V feed to external time and temperature
control
120/230 VAC
• 230V programmable room thermostat
L N
– Switch live demand input [LR]
– Live output [L]
– Neutral output [N]
– Earth output [
120/230 VAC
LR L N
]
6 720 808 928 (2017/06)