INSTALLATION
SECTION 3
14
M5910 G
AL1
AL2
TH1
TH2
BT1
BT2
LS1
LS2
TS1
TS2
TS3
TS4
EN1
EN2
gy
gn
bk
or
y
r
y
bk
r
r/
bl
bk
bk
bk
gy
br
br
br
br
gy
gy
gy
gy
br
bl
r
r
r
r
wh
wh
wh
wh
bl
br
bl
bl
bl
bl
br
br
br
br
br
br
br
br
bl
bl
bl
bl
S
E
C
O
N
D
A
R
Y
P
U
M
P
E x ternal wiring to the water heater(s) must be installed in accordance with current I.E .E .
Regulations for the wiring of buildings and to any Local Regulations that may apply.
The
range is designed to operate from a permanent 2 30 v/ 5 0 Hz single
phasesupply. The fuse rating is 5 amps.
The method of connection to the mains electricity supply should facilitate complete
E lectrical isolation of the appliance, preferably by use of a fused double pole switch or
fused spur box serving only the heater. The disconnection of the supply shall have a
contact separation of 3mm on all poles.
The point of connection to the mains electricity supply should be readily accessible and
adjacent to the appliance.
A terminal block can be found above the control panel (Fig. 4). This becomes accessible
by first removing the front cover.
Maximum Electrical Loading
Model T y pe
W atts
A mps
30 kW
170
0 .74
60 kW
340
1.48
9 0 kW
5 10
2 .2 2
12 0 kW
680
2 .9 6
The following connections can be made on the terminal block
(see Fig. 5 wiring diagram):
Terminals
Terminal Function
AL1 - AL2 :
Alarm volt- free contacts (2 4 volt 1 amp max .)
E N1 - E N2 :
E nable or disable contacts volt- free (link fitted to enable).*
B T1 - B T2 :
Secondary set point temp. enable (40 - 80
º
C)*
LS1 - LS2 :
Secondary return temp. sensor for pasteurisation function.
TH1 - TH2 :
Secondary pump control enable.*
Pump L - Pump N:
Secondary pump power supply (0 .7 amp max .)
* To activate place a contact across the terminals.
ELECTRICAL
SUPPLY
ELECTRICAL
CONNECTION
Fig. 4
MAXXflo_Manual_Dec08_QX2 12/1/09 1:13 pm Page 17
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