Technical data

Page 5
BOILERMATE
A-CLASS
SP
1.2 TECHNICAL DATA
Notes:-
1. The BoilerMate 225 appliance is suitable for use in large properties because it produces the same ‘peak hour output’ as a typical 350-
400 litre unvented cylinder. For properties requiring the BMA 220 the incoming main should be a minimum of 32mm MDPE with
a pressure of not less than 2 bar dynamic and an adequate fl ow in line with the pipe sizing calculations. In many cases, properties
of this size will benefi t from having 2 smaller sized appliances located adjacent to the areas of peak hot water use. This will allow
2 heating zones to be provided and remove the need to provide trace heating on the hot water system.
2. A plastic feed and expansion cistern will be supplied separately including ballvalve, fl oat and overfl ow fi tting.
3. The fl ow rates are based on a 35°C temperature rise and assume normal pressure and adequate fl ow to the appliance. The actual
fl ow rate from the appliance is automatically regulated to a maximum of 28 litres/min.
4. Unit is supplied on a 100mm high installation base.
5. The domestic hot water outlet temperature is automatically regulated to approximately 52°C at the bath fl ow rate of 18 litres/min
recommended by BS 6700. The temperature is not user adjustable.
6. The designer/installer MUST calculate the suitability of the standard pump as part of normal design procedures.
7. The expansion vessel sizes have been calculated to be adequate for typical steel panel mini bore heating systems. The designer/
installer MUST check that these are adequate as part of normal design procedures and specify an extra expansion vessel if
required.
1.0 DESIGN
Model BMA 120 SP BMA 140 SP BMA 180 SP BMA 200 SP BMA 220 SP
Weight (empty) 49.4 kg 51.8 kg 54.2 kg 56.5 kg 60.8 kg
Weight (full) 174.4 kg 191.3 kg 201.2 kg 220.5 kg 245.8 kg
DHW Pump
Grundfos UPR 15/50 Grundfos UPR 15/50 Grundfos UPR 15/50 Grundfos UPR 15/50 Grundfos UPR 15/50
Boiler/Heating Pump
Grundfos UPS 15/50 Grundfos UPS 15/50 Grundfos UPS 15/50 Grundfos UPS 15/60 Grundfos UPS 15/60
Primary/heating
pipe connections
22mm 22mm 22mm 28mm 28mm
MCW & DHW pipe
connections
22mm 22mm 22mm 22mm 22mm
Cold feed/expansion
connection
22mm 22mm 22mm 22mm 22mm
Safety open vent
connection
22mm 22mm 22mm 22mm 22mm
Primary fl ow
(for summer use
bathroom towel rail)
15mm 15mm 15mm 15mm 15mm
Maximum summer
towel rail load
0.5kW 0.75kW 1.00kW 1.25 kW 1.5 kW
Maximum pressure
heating circuit
3 bar 3 bar 3 bar 3 bar 3 bar
Volume of primary
coil
4.9 litres 4.9 litres 5.5 litres 5.5 litres 6.1 litres
Expansion vessel size 12 lts 12 lts 12 lts 25 lts 25 lts
Drain connection R ½” R ½” R ½” R ½” R ½”
Maximum Head
Thermal Store
6 meters 6 meters 6 meters 6 meters 6 meters
Hot water fl ow rate
(l/m) up to
35 35 35 35 35
Max heating system
size
11.25 kW 15 kW 18.75 kW 22.5 kW 26.25 kW
‘Switch’ 6 kW 6 kW 6 kW 6 kW 6 kW
Typical Dwelling Types
Bedrooms 1-3 2-3 2-4 3-5 4-6
Bathrooms 1 1 2 1 2 1 2
En-suite shower 1 2 1 4 2 4 3