General - Benchmark mCHP BoilerMate Design, Installation And Servicing Instructions

3.1 GENERAL

The mCHP_BoilerMate A-CLASS
heating systems and the technical specification is presented in tables 3.1
and 3.2. The model selection data is shown in table 3.3. The factory fitted or
supplied standard components (shown in figures 2.1 and 2.2) and the optional
component either factory fitted, supplied or available are listed in table 3.4.
These appliances are supplied on an installation base to allow the pipe
runs to be connected to the appliance from any direction. It is easier if all
pipes protrude vertically in the cut out area shown. Compression or push-fit
connections can be used.
These appliances are normally installed in an airing cupboard and the minimum
cupboard dimensions required are shown in figure 3.1.These dimensions only
allow the minimum space required for the appliance including the F&E cistern.
Any extra space required for shelving etc in the case of airing cupboard etc
must be added.
Table 3.1 Technical Specification of mCHP BoilerMate
Storage volume
Appliance weight
Appliance dimension
Minimum cupboard
dimensions
Primary system expansion volumes(1) [0-100°C]
Maximum working head - Thermal Store
Cold water mains supply
dynamic pressure
Pipe connections
Notes:
(1) The expansion volumes are based on 10kW installed radiator output for 225 N&R models and 12 kW for 235 N & R models.The
Feed & Expansion (F & E) cistern must be sized according to the Water Regulations to accommodate expansion volumes. One
F & E cistern is supplied with the smaller mCHP and two F & E cisterns with connection fittings are supplied wth the larger
units.
(2) Bathroom towel rail return connection in the appliance.The towel rail circuit connected to this connection and the mCHP flow
pipework will heat when ever the mCHP unit is firing (see manual).
Supplied By www.heating spares.co Tel. 0161 620 6677
TECHNICAL SPECIFICATION 3.0
models are only suitable for open vented
Nominal Storage Capacity litres
Empty kg
Full kg
height mm
width mm
depth mm
height mm
width mm
depth mm
litres
mWG
Minimum bar
Recommended bar
Maximum bar
MCW & DHW mm
Safety open vent mm
Cold feed & expansion mm
Boiler flow and return mm
CH flow and return mm
CH flow & return mm
Towel rail(2) mm
Drain connection mm
The appliance pipe connection positions
are shown in figures 3.2a and 3.2b. All
pipe positions are approximate only and
are subject to tolerance of ± 200mm in
any direction. A 15mm cold water supply
and a 22mm warning/overflow pipe will
also be required for the separate feed and
expansion cistern.
A-CLASS
- Physical Data
BMA225N BMA235N BMA225R
186 210 186
49 53 49
235 263 235
1300 1440 1300
530 530 530
595 595 595
2050 2190 2050
630 630 630
600 600 600
9.04 10.32 9.04
10m - Suitable only for open vented system
1bar, HW supply & distribution will be poor
2-3, For good HW service
5, PRV set at 3.0bar must be fitted above 5bar
22 22 22
22 22 22
22 22 22
22 22 22
22 22 22
22 22 22
15 15
R1/2" R1/2" R1/2"
Page 13
BMA235R
210
53
263
1440
530
595
2190
630
600
10.32
22
22
22
22
22
22
R1/2"