gledhill mCHP BMA 225 Installation And Servicing Instructions page 27

Figure 5.1 Appliance wiring terminals NO
clock option
Note: Details of wiring terminals with
programmer fitted as standard are shown in
figure 3.6
Figure 5.2
Schematic Electrical Wiring Diagram
INSTALLATION AND WIRING 5.0
Pump supply
(4)
From mCHP
230V ac
(3) Electric boost on signal (L)
(2) mCHP_boost 'switched' live (L)
(1) mCHP_on/off 'switched' live (L)
Room stat 'switched' live (L)
Programmer HW 'switched' live (L)
Programmer CH 'switched' live (L)
Permanent Live (L) 230V
Neutral (N) 230V
N
Mains supply
L
230V, 50Hz, 32A
6mm
2
E
230V, 50Hz
Supply
2 Pole, 6A Isolator
mCHP
Appliance
mCHP boost mode signal (230V, 50Hz)
mCHP pump on-off supply (230V, 50Hz)
PE
PN
PL
SL_E
SL_B
SL_O
SL_R
SL_W
SL_H
PE
PE Appliance Internal Wiring
See figure 3.6
PE
L
L
N
N
N
N
N
MCB2 16A
MCB2 16A
MCB3 6A
E
2 Pole, 32A Isolator
mCHP
BoilerMate
(1)
mCHP on-off signal (230V, 50Hz)
(2)
mCHP electric boost signal
(3)
(4)
Page 27
230V, 50Hz
32A, Supply
Room
thermostat
230V, 50Hz