Benchmark BoilerMate BMA 125 OV, Design, Installation And Servicing Instructions

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BOILERMA
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A-CL
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OV
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 225 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.
1.0 DESIGN
Model BMA 125 OV BMA 145 OV BMA 185 OV BMA 215 OV BMA 225 OV
Weight (empty) 45 47 50 51 56
Weight (full) 177 187 197 215 244
DHW Pump Grundfos UPR 15/50 Grundfos UPR 15/50 Grundfos UPR 15/50 Grundfos UPR 15/50 Grundfos UPR 15/50
Heating Pump Grundfos UPS 15/50 Grundfos UPS 15/50 Grundfos UPS 15/50 Grundfos UPS 15/60 Grundfos UPS 15/60
Boiler Pump Grundfos UPR 15/50 Grundfos UPR 15/50 Grundfos UPR 15/50 Grundfos UPR 15/60 Grundfos UPR 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 return
(for summer use
bathroom towel rail) 15mm 15mm 15mm 15mm 15mm
Maximum summer
towel rail load 0.15kW 0.75kW 1.00kW 1.25 kW 1.5 kW
Drain connection R ½” R ½” R ½” R ½” R ½”
Maximum Head 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 12 kW 17 kW 20 kW 25 kW 30 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