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14
Wiring diagrams for single unit installations
Electrical connections for tandem unit installations
All ThermoSphere Micro Electric Boilers must be fitted
with their own correctly sized RCBO and an isolation
switch in-line with the fixed wiring to the electrical
supply.
Bring the Live, Neutral and Earth from the supply
through the cable gland.
The Live, Neutral and Earth electrical supply
connections must be permanently and correctly
connected to the terminals on the PCBA as shown.
It is the installer‘s responsibility to ensure that the
230V supply circuit can support the total maximum
load of the installed system and that the supply cable,
RCBO and any switches are adequately sized for the
output of the installed TSMEBs.
All wiring connections are polarity dependent.
Incorrect wiring will cause an earth leakage detection
(Error code FC).
With tandem installations, both units must be fitted
with their own respective RCBO and an isolation
switch in-line with the fixed wiring to each electrical
supply.
It is the installer‘s responsibility to ensure that the
230V supply circuit can support the total maximum
load of the installed system and that the supply cable,
RCBO and any switches are adequately sized for the
output of the TSMEBs.
Bring the Live, Neutral and Earth from the supply
through the cable gland of each unit.
The Live, Neutral and Earth electrical supply
connections must be permanently and correctly
connected to the terminals on the PCBA as shown.
All wiring connections are polarity dependent.
Incorrect wiring will cause an earth leakage detection
(Error code FC).
Single unit wiring
Tandem unit wiring
TSMEB
L
N
E
Isolation
switch
30mA
RCBO
230VAC
Supply
TSMEB
L
N
E
Isolation
switch
30mA
RCBO
230VAC
Supply
TSMEB
L
N
E
Isolation
switch
30mA
RCBO
230VAC
Supply
TSMEB
L
N
E
Isolation
switch
30mA
RCBO
230VAC
Supply
