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Pre-installation

Installation
PumpWise guidelines
General specification
Trouble shooting
PumpWise and warranty

Pre-installation

Installation

PumpWise guidelines

General specification

Trouble shooting

PumpWise and warranty

1. Location of the pump

The best possible location for the pump is 
at or near the base of the cylinder at least 
600mm below the bottom of the cold water 
storage tank. Where it is not physically 
possible to locate the pump next to the 
cylinder, the pipe run from the hot water 
cylinder to the pump must not exceed 4m in 
22mm pipe work.

1.1  Cooling and ventilation

The pump should be placed in a position 
where there is an adequate air flow to cool 
the motor and separated from any other 
appliances that generate heat. It should be 
installed in a clear space allowing 100mm 
additional space at each side, the ends and 
top of the pump.

1.2  Frost protection

Loft mounted pumps must be protected 
from frost damage.

2.  Hot and cold supplies  

to the pump

Never fit the pump directly to the cold  
water mains.
Never fit to communal risers (e.g. block of 
flats) or secondary circuits that are pumped.
The pump must be fed by exclusive hot and 
cold water supplies (i.e. not shared with other 
services) and in 22mm pipe work (Note: for 
the RSP 50 a maximum of 2m of 15mm inlet 
pipe work).
The hot supply pipe work should be a 
maximum of 4m from the cylinder in 22mm 
pipe work.
All up and over pipe work must be vented at 
the highest point on the outlet of the pump 

Please follow these installation instructions carefully. Failure to install your pump 
in accordance with these instructions will invalidate your warranty.

Pre-installation checklist

Our pre-installation guidelines are detailed on the following pages, but some of 
the key “do’s and don’ts” are highlighted below:

and a non-return valve (NRV) may require to 
be fitted to the hot outlet only (Note: for the 
ESP range this is for the ESP 50 CPV and  
ESP 55 CPV only).

2.1   For pumps positioned above 

the hot outlet, hot water 
cylinder or in a loft

An anti-gravity loop (AGL) off a No stop 
Essex Flange must be used when it 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. 
Never put a non-return valve, inverted loop, 
restrictive balofix or an air vent on the supply 
pipe work to a pump.
Where the pump is servicing two or more 
bathrooms, the cold water supply to the 
cylinder must be in 28mm pipe work. 

2.2  Cold water storage

Ensure that the cold water storage capacity 
is adequate for all of the household 
requirements (minimum 50 gallons per 
bathroom, 80 gallons for one bathroom and 
one en-suite shower room). 
Ensure the cold water supplies to the cylinder 
and the pump are taken from the opposite 
side of the cold water storage tank from the 
cold mains inlet.

Figure 1: Tank inlet and outlet position

To Pump

To Cylinder

Outlet to

cylinder

Inlet

Bottom of cold 

tank must be 

cleared of debris

Outlet to pump

Fig 1

OLD STYLE DO NOT USED

Fig 2

Do’s

  Locate the pump next to the hot water 

cylinder OR no further than 4m away in 
22mm pipe work

  Allow 100mm on all sides for ventilation

  Ensure pump is protected from frost

  If servicing two or more bathrooms, cold 

water supply to the cylinder must be in 
28mm pipe work

  Ensure adequate cold water storage  

(50 gallons/bathroom, 80 gallons for one 
bathroom and one en-suite)

  Cold water supplies to the pump must 

be taken from the opposite side of the 
cold water storage tank to the cold water 
mains inlet

  Multiple cold water storage tanks must 

be linked in 28mm pipe work and the 
bottom of the tanks must be at the  
same level

  Hot water supply to the pump must be 

via a Salamander approved flange

  AV couplers must only be finger tight plus 

one quarter turn

  The maximum static head should be  

10m (equivalent to 1.0 bar pressure) – 
only exception is the ESP 50 CPV which  
is 5m (equivalent to 0.5 bar pressure)

  We recommend the pump is activated for 

at least 5 minutes every 4 weeks 

Don’ts

   Never fit the pump to the cold  

water mains

  Never fit the pump to communal risers

  Never use a shared water supply

  Never put a non-return valve (NRV), 

inverted loop, restrictive balofix or an air 
vent on supply pipe work to the pump

  The hot water supply to the pump must 

not exceed 60-65ºC

   Never twist the anti-vibration (AV) 

couplers or bend more than 35º

  Never use mechanical tools to tighten 

coupler nuts as this may cause damage 
and will invalidate your warranty

   Never use jointing compounds,  

Boss White, Hemp or steel wool

   Solder fluxes must not come into contact 

with the pump or AV couplers

  Never install in a bathroom unless in an 

enclosed space and access is only possible 
with an appropriate tool

  Never pump directly to or from another 

shower pump

  Never connect to a secondary return 

tapping on a hot water cylinder

SAL6479 Pumps Install DocAW1 .indd   2-3

29/09/2011   11:27

Summary of Contents for RGP

Page 1: ...Postcode 4 What is the approximate cold water storage capacity in gallons Pump serial number Model Date of purchase _____ _____ _____ 5 Where is the pump situated How far is it from the hot water cyli...

Page 2: ...l us implement our engineers recommendation for your installation situation then ask your customer to register When the job is finished tear off the final page of this instruction manual and hand it t...

Page 3: ...an air vent on the supply pipe work to a pump Where the pump is servicing two or more bathrooms the cold water supply to the cylinder must be in 28mm pipe work 2 2 Cold water storage Ensure that the c...

Page 4: ...pump must be connected to the electrical supply using the mains cable with the attached plug This plug must be connected to an accessible socket that has been installed in compliance with BS7671 I E E...

Page 5: ...per bathroom The hot connection must be via an approved side or top entry flange see page 16 Vent and other services Cold water storage MAX 65 C H C Outlet Inlet Outlet Inlet Fig 5 Right pump feeding...

Page 6: ...tive head Usable capacity minimum 50 gallons per bathroom The hot connection must be via an approved side or top entry flange see page 16 Vent and other services Cold water storage MAX 60 C H C Outlet...

Page 7: ...throom C Fig 10 ESP CPV single Tank fed pressurised cylinder or Combi boiler system with Right ESP CPV single pump to boost the hot supply water pressure and cold water mains supplies cold to shower b...

Page 8: ...of cold storage The typical recovery rate of a 1 2 inch high pressure part II BS1212 ball valve is 15PSI 1 0 bar 0 97 galls min 30PSI 2 0 bar 1 34 galls min 40PSI 2 7 bar 1 58 galls min 60PSI 4 0 bar...

Page 9: ...starvation protection pipework arrangements and stored hot water Fortic type tanks and pre assembled units Typically used in very small flats and houses Not usually with sufficient water capacity of...

Page 10: ...of the hot supply water to the pump The No Stop Essex flange is in all circumstances the best option S flange Complete with compression pump and open vent connections Also supplied with an adaptor to...

Page 11: ...is simply achieved by use of a cylinder thermostat and zone valve or direct acting thermostatic valve e g tapstat In systems where the stored hot water temperature is not controlled eg Aga solid fuel...

Page 12: ...V valve Is the temperature set to 65 C maximum Fault Probable cause Recommended solution Reduced intermittent flow Incorrect or no anti aeration flange fitted Check that installation complies with Sal...

Page 13: ...ment which shall in the opinion of the Company have proved defective by reason only of the Company s materials or workmanship providing always that the Company shall be under no obligation whatsoever...

Page 14: ...ion PumpWise guidelines General specification Trouble shooting PumpWise and warranty Freepost RLXE JHHY HLHJ Salamander Pumps Unit 2c Colima Avenue Sunderland SR5 3XE Notes SAL6479 Pumps Install DocAW...

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