gledhill Stainless Lite HP SOL Indirect 180-400 litres Design, Installation & Servicing Instructions page 12

INSTALLATION
Stainless Lite HP SOL and HP Model Selection Guide
Dwelling type
Number of
Number of
bathrooms and
bedrooms
shower rooms
1-3 1 bathroom
1 bathroom +
2-3
1 shower room
1 bathroom +
2-3
2 shower rooms
2 bathrooms +
2-4
1 shower room
2 bathrooms +
2-4
2 shower rooms
2 bathrooms +
3-5
2 shower rooms
2 bathrooms +
4-5
3 shower rooms
Notes
1 Where solar model selected, both top and bottom heat exchangers connected to heat
pump circuit
2 Top heat exchanger connected to heat pump circuit and bottom heat exchanger
connected to solar circuit.
3 F = Maximum fl oor area of the dwelling for compliance with the Building Regulations
A
Stainless Lite HP Slimline Model Selection Guide
Dwelling type
Number of
Number of
bathrooms and
bedrooms
shower rooms
1-3 1 bathroom
1 bathroom +
2-3
1 shower room
1 bathroom +
2-3
2 shower rooms
2 bathrooms +
2-4
1 shower room
INSTALLATION
Suggested model
Without solar With solar heating
(1)
heating system system
HP180INDSOL HP180INDSOL
HP180IND (F
HP180INDSOL HP210INDSOL
HP180IND (F
HP180INDSOL HP250INDSOL
HP180IND (F
HP210INDSOL HP300INDSOL
HP210IND (F
HP250INDSOL HP400INDSOL
HP250IND (F
HP300INDSOL
HP300IND
HP400INDSOL
HP400IND
Suggested model
HP180SL
HP180SL
HP180SL
HP210SL
Page 12
Model Selection
The suggested model sizes shown in the table
opposite are based on a typical daily hot water
usage and on the assumption that the heat
(2)
pump will heat the domestic hot water to about
50°C. For higher specifi cation, an increase of one
model size should be considered.
=50m 2 )
A
When selecting a solar model, it is important to
2 check the dedicated solar volume shown in table
=65m )
A
1 is suitable for the total fl oor area of the dwelling
and/or net area of the solar collectors to ensure
2
=85m )
A compliance with the Building Regulations.
=110m 2 )
When sizing the hot water cylinder, please use
A
MCS guidelines in MIS3005 and also refer to BS
EN 806:1-5 AND BS EN 8558.
2
=150m )
A
When Stainless Lite HP SOL is connected to both
–
heat pump and solar thermal systems, then
during the winter period the solar contribution
–
will be negligible and the heat pump will only
heat about 65% of the cylinder volume. This
should be taken into account when selecting
the model.
Please note that the two heat exchangers
must be connected in parallel to the heat
pump circuit when a solar thermal system is
not installed, as shown in the schematic below.
Secondary
Return Circuit
Pump
Heat Pump
Flow
Heat Pump
Stop
Tap
Kitchen
Cold
Tap
Stainless Lite HP SOL model without
Hot Outlet
P&T Relief Valve
Tundish
Non Return
Valve
Expansion
To Drain
Vessel
ERV
NRV
Return
Combination
solar heating system
Balanced
Cold
Outlets
PRV
Valve