Zoned Heating Systems; Typical Schematic Arrangement Of Multizone Heating - gledhill BoilerMate A-Class OV SOL Series Design, Installation & Servicing Instructions

Manual Isolating
Valves

TYPICAL SCHEMATIC ARRANGEMENT OF MULTIZONE HEATING

N
16A 16A 6A
BOILERMATE MULTI-ZONE
EXTERNAL WIRING DIAGRAM
Zone 1
Programmable
room thermostat
Programmable
room thermostat
Zone 1 Flow
Zone 2 Flow
Zone 1 Return
Zone 2 Return
4 Core cable
L N E SL L1 L2
3 core 0.75mm²
flex
E
E
1 2
1 2 3 3
COM OFF ON
COM OFF ON
TP5000 Programmable room
Thermostat
Zone 1
Page 31
INSTALLATION

Zoned Heating Systems

If a zoned heating system (or a separate towel
rail circuit) is required, this can be provided in
the conventional way from the main heating
flow and return.
In many cases this has been achieved by
raising the appliance in the cupboard to create
an accessible space which will allow easy
maintenance of the necessary zone valves etc.
A typical schematic arrangement for a 2 zone
Zone 2
system is shown opposite. Further zones can be
added in the same way if required.
Time and temperature control of each zone
valve can be achieved by fitting a programmable
room thermostat.
A typical wiring arrangement based on the
use of a Danfoss TP5000 programmable room
thermostat is shown below.
However other ways of controlling the
zones using multi channel clocks and room
thermostats can be used if preferred.
When used in this way channel 1 of the digital
clock fitted to the front of the BoilerMate A-Class
OV SOL can be set as normal to control the hot
water but channel 2 must be set to continuous
operation mode.
4 Core cable
L
Junction Box
5 Core flex from
zone valve
3 core 0.75mm²
flex
1
L N
E
L N E
AS
AS COM OFF ON
COM
Zone valve Spring return
TP5000 Programmable room
with auxiliary switch
Thermostat
SZ Solar Zone Sensor
SC Solar Panel Sensor
N E SL L1 L2
Junction Box
5 Core flex from
zone valve
E
E
2
1 2 3 3 L N
E
L N E
AS
AS
OFF ON
Zone valve Spring return
with auxiliary switch
Zone 2