Sime MIA-30, User, Installation And Servicing Instructions

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6.13.2 External timers and Room Thermostats
The heat demand can be by a "clean contact" conforming to
EN607301 connected to TA (see section
"Wiring diagram"
) or
by use of a dedicated Sime Remote Control (Home or Home
Plus). The boiler will automatically detect when a dedicated
control is connected.
6.13.3 EXAMPLE of use of the command/control
device on some types of heating systems
KEY
M System flow
R System return
CR Remote control
SE External temperature sensor
TA Room thermostat for boiler activation
TZ1÷TZ3 Room thermostat for the zone
VZ1-VZ3 Zone valves
RL1-RL3 Zone relays
P1-P3 Zone pump
TSB Low temperature safety thermostat
ONE DIRECT ZONE system, external sensor and room ther-
mostat.
R
M
SE
TA CR
Fig. 32
MULTI ZONE system - with zone valve, room thermostat and
external sensor.
TA
TZ1
VZ1 VZ2 VZ3
TZ2 TZ3
SE R M
Fig. 33
m
CAUTION
Set the parameter "tS 1.7 = DELAY SYSTEM PUMP
ACTIVATION to allow the opening of zone valve VZ.
MULTI ZONE system - with pump, room thermostat and ex-
ternal sensor.
TA
SE
TZ2 TZ3
TZ1
P3
RL1
SP
RL2 RL3
P2 P1
R M
Fig. 34
6.14 Refilling or emptying
Before carrying out the operation described below, isolate the
boiler power supply.
Ensure that the inhibiter concentration is correct on refilling.
OFF
Fig. 35
6.14.1 Method of filling a sealed system
A sealed system must only be filled by a competent person
using a method similar to that shown in figure below.
Stop
valve
Stop
valve
Test cock
Hose
unions
Double chech
valve assembly
Filling loop
temporarily connected
Mains
water supply
Heating
cicuit return
Fig. 36