Design; Introduction; Technical Data - gledhill BOILERMATE CP BMSCP120 Instruction Manual

DESIGN

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The BoilerMate CP shown schematically above is designed to provide an improved
method of supplying mains pressure hot water when used with a central plant system.
An important feature of the concept is that hot water can be supplied directly from
the mains at conventional flow rates without the need for temperature and pressure
relief safety valves or expansion vessels. This is achieved by passing the mains water
through a plate heat exchanger. The outlet temperature of the domestic hot water
is maintained by a printed circuit control board, which controls the speed of the
pump circulating the primary water from the store through the plate heat exchanger.
The Domestic Building Services Compliance Guide (2013) provides more detailed
information on the guidance contained in Approval Documents L1A and L1B, guidance
to the Building Regulations. The recommended minimum standards specify that
"where the mains water hardness exceeds 200ppm provision should be made to treat
the feed water to water heaters and the hot water circuit of combination boilers to
reduce the rate of accumulation of lime scale".
To comply with this requirement the hardness of the mains water should be checked
by the installer and if necessary the optional factory fitted in-line scale inhibitor should
be specified at the time of order for hardness levels between 200 and 300 ppm (mg/l).
Where the water is very hard ie 300ppm (mg/l) and above the optional polyphosphate
type, inhibitor should be specified at the time of order. However, this will need to
be fitted by the installer at a suitable point in the cold water supply to the appliance.

INTRODUCTION

1. Boiler ow
2. Backup immersion heater
3. PHE pump
4. Cold Feed
5. CW inlet
6. HW outlet
7. Drain
8. Return from PHE to store
9. Flow from store to PHE
10. Feed and expansion tank
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11. Boiler return
12. Flow sensor
13. Thermostat pocket
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This unit uses minimal power in stand by mode,
but can be turned off if required.
Because this product does not require a safety
discharge from a temperature and pressure
relief valve, any installations will be easy to
incorporate into the building and will not suffer
from the problems associated with using PVCu
soil stacks to take the discharge from unvented
cylinders.
The heat losses from thermal stores should not
be directly compared with heat losses from
unvented or vented cylinders because they are
treated differently in SAP. This is because the
unvented and vented cylinders are tested at
65°C and the thermal store at 75°C.
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Table 1.1
Energy efficiency class
Heat loss
Height (mm)
Width (mm)
Depth (mm)
Min cupboard height (mm)
Min cupboard width (mm)
Min cupboard depth (mm)
Weight (empty) (kg)
Weight (full) (kg)
Domestic hot water volume (litres)
Hot water flow rate (litres/minute)
Coil rating (kW)
Coil surface area (m
Pressure loss of coil (bar)
Table 1.2
Bedroom
Bathroom
En-suite shower rooms
Figure 1.1
Model required
Notes:-
1. Plastic top up cistern will be supplied separately.
2. The flow rates are based on a 35°C temperature rise and assume that recommended
pressures and adequate flow are available at the appliance. The actual flow rate
from the appliance is automatically regulated to a maximum of 15 litres/min.
3. Unit is supplied on a 100mm high installation base.
4. The domestic hot water outlet temperature is automatically regulated to
approximately 55°C, and the temperature is not user adjustable.
Technical Specification BoilerMate CP
Product Stock Code BMSCP120
C
watts 65
kWh/24hr 1.56
1075
530
595
1825
570
610
48
162
105
12.5
12
2 ) 1.18
0.20
Model Selection Guide BoilerMate CP
Dwelling Type
1-2
1 or
1
BMSCP120 BMSCP150
Page 5
DESIGN
BMSCP150 BMSCP180 BMSCP220
C C C
66 72 88
1.58 1.73 2.11
1145 1275 1575
560 560 560
630 630 630
1895 2025 2325
600 600 600
645 645 645
52 57 65
198 222 275
140 160 195
12.5 12.5 12.5
16 17 21
1.56 1.92 2.54
0.22 0.22 0.28
2-3 2-3 2-4
1 1 2
1 2 1
BMSCP180 BMSCP220

TECHNICAL DATA