6
7
8. Check the marker arrows on the pump to ensure correct direction of water flow.
Either end of the pump is suitable for hot or cold water.
9. Check the static inlet pressure does not exceed 10m max (1.0bar/100kPa) of water
above the pump.
10. The hot supply pipework to the pump should be a maximum length of 5 metres in 22mm pipe
(hot and cold supplies should be no more than 2 metres in 15mm pipe).
11. Exclusive hot and cold supplies to the pump with the hot from a Salamander approved method.
Exceptions, only when pump is at the base of the cylinder and within 5m, are:
• hot supply–from the vent angled at 45º, vertically down the hot connection at the vent,
at least 1.5 metres below the base of the cold water storage cistern (Figure 6).
• alternatively, the hot and cold supplies to the pump can be teed off other 22/28mm
supplies (Figure 7) provided that:
• the tee off to the pump is first call on the downward leg after the vent connection.
• the cold supply to the pump is not shared with the cold feed to the cylinder.
12. The best hot connection from the cylinder (figure 3) is either with:
a
¾
inch no stop Essex flange, or a Salamander S flange or other approved top entry flange is
fitted.
13. Check that water storage capacity recovery meets required flow rates, particularly at peak
demand (i.e. appliances in simultaneous use).
14. All up and over pipework must be vented at the highest point on the outlet of the pump.
15. Ensure that pipe runs minimise airlocks.
16. In positive head systems, allow for increased resistance of long pipe runs with multiple bends.
The natural flow from the shower head or other outlets must be at least 2litres/minute at all
times. Any supply where the natural flow is less than 2litres/minute is classed as a negative
head situation.
Step 1: Pump location
1. Site the pump in a location where it will not freeze or be exposed to frost during cold weather.
2. Ensure adequate airflow to cool the motor. Separate the pump from other appliances that
generate heat. Install the pump in a clear space allowing 100mm at each side, end and top.
3. Care must be taken not to endanger pre-existing electrics when siting your Salamander pump
4. Ensure the pump is as close to the hot water cylinder as possible & no more than 5m in
measured pipework away.
5. Mount the pump upright (shaft horizontal, not screwed down).
6. An anti-gravity loop (AGL) of at least 400mm (ideally using swept bends) must be used
when the pump is sited above the dome of the hot water cylinder as it prevents air tracking
up into the pump chamber and back siphoning of the water again, creating air in the pump
chamber. An approved side or top entry flange must be used in these circumstances for the
hot water connection to the cylinder, with the Essex or alternative side entry flange being the
recommended method of connection. If the pump experiences aeration or low pressure as
result of poor flow to the pump with the use of a top entry flange, a side entry or Essex flange
may become a requirement.
7. Bathroom Zones: Salamander products covered in these notes cannot be installed
in Zone 0 or Zone 1. They can however be installed in areas that are accessible with
a tool. (See figure 5)
The pump should be installed in accordance with BS7671:2018.
In BS7671:2018 rooms containing baths or showers should be broken down into zones.
These zones are summarised as:
ZONE 0 – This is the bath or shower tray
ZONE 1 – Is considered to be the area where the individual is bathing or showering
or the area where shower water is likely to be directly sprayed.
ZONE 2 – Is the area beyond Zone 1, extending by a further 600mm.
Please refer to BS7671:2018 for further guidance.
Outside
Zones
Outside
Zones
Zone 0
Zone 1
Zone 2
Outside Zone
Space under bath is Zone 1
if accessible without tool
Window recess Zone 2
2
2
2
2
2
1
1
0.6m
0.6m
2
Outside
Zones
Outside
Zones
Outside Zones
2
2
2
2
2
1
0
Zone 0
Zone 1
Zone 2
Outside Zone
Space under bath is Zone 1
if accessible without tool
Window recess Zone 2
0.6m
0.6m
Outlet
Inlet
Outlet
Maximum 5 metres from vent to pump
(only 2 metres in 15mm pipe)
Cold
water
storage
2 litres/min
natural flow
Minimum
1.5 metres
MAX
60°C
Cold water storage
Inlet
Outlet
Inlet
Outlet
Usable capacity
Minimum 50 gallons
per bathroom
600mm or
less possible
negative head
Positive head
Other
supplies
Vent
Other services
MAX
60°C
MAX
60°C
1st tee off
downward leg
Figure 5: Bathroom Zones
Figure 6. Exclusive hot and cold supply
Figure 7. Tee off other supplies
*
*Vent and expansion pipe to terminate to current standards
*
Summary of Contents for CT FORCE series
Page 16: ...28 29 Notes Notes...
