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3. COMMISSIONING & INSTALLATION
3.1 Filling up
1.
Open a hot tap.
2.
Open the cold water supply valve
3.
When water flows from hot tap, close the tap
4.
Allow the system to stabilize for 5 minutes
5.
Open each hot water tap in turn to expel air
from the system pipe work.
6.
Check for leaks.
7.
Manually operate Temperature and Pressure
Relief Valve (5) to ensure free water flow
through discharge pipe. (Turn knob left.)
3.2 Draining
Switch off the electrical power (important to avoid
damage to element (8)). Turn off the cold water
supply valve. Open hot water tap. Open drain at
base of cylinder (13) using a 6 mm hex key. The
unit will drain. Draining process may be speeded
up by opening the temperature and pressure relief
valve. An internal ø18 mm hose can be applied to
bottom drain cock to lead the water to a gully, sink
or similar.
3.3 System flushing
System flushing will not be necessary under nor-
mal circumstances as the line strainer will prevent
ingress of foreign materials, however if flushing is
required, run at least 50 litres of water from the
cylinder at the highest possible flowrate. Close the
taps and follow draining procedure above.
Data tables
Note: Temperature rise is from 15 to 60°C. Coil
heating performance based on a primary flow rate
of 15 l/min. at 80°C. Test results are in accordance
with BS EN 12897:2016.
Product
Max. design
ref.
pressure
RI 150
6 bar
Product
Weight
Weight
ref.
empty
RI 150
43
*Alternative to plate heat exchanger
10
Operating pressure
CW feed & coil
Cw in 3 bar, coil 2.5 bar
Heat-up (mins)
Rating (kW)
full
coil/element
coil/element
184
24.3
Pressure drop
Temp./pressure
primary heater coil
0.04 bar
90-95°C / 10 bar
Heat loss
Recovery
kWh/24h
rate 70%
16.5 / 2
1.8
17
Safety valve
relief valve
Pressure/conn.
6 bar / 15 mm - 1/2"
Primary
Usable hot
flow rate
water at 40°C
15 l/min. - 80°C
129 ltrs.
5
6
16
13
8
Exp. vessel
capacity
12 l.
Volume mixed
to 40°C
221 ltrs.
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