Redring 520M User Manual

520M/520TS

Manual and Thermostatic

Power Shower Units

Installation instructions & User guide

IMPORTANT: This booklet should be given to the customer after installation and demonstration.

WARNING: Under no circumstances should this unit be connected to the mains water supply.

Thank you for choosing a quality 'Redring'
product manufactured in Peterborough, England.

CONTENTS Page
Information for the user

Important Safety Instructions 2
How to use your 'Redring' power shower 2
How to maintain your 'Redring' power

shower 4
What to do if things go wrong 4

Additional accessories 10

Information for the installer

Fixing the shower to the wall 5
Plumbing 6
Electrical 9
Guarantee 12

IMPORTANT SAFETY
INSTRUCTIONS

1. The Redring Expressions Power Shower is
designed to boost the flow of stored domestic
water, which is gravity fed from a static cold
water cistern and hot water cylinder.

Under no circumstances should this unit be
connected directly to the mains cold or hot
water supplies.

2. The cold water cistern should have a
minimum capacity of 114 Litres (25 galls).
There must be a minimum head of water of

8.0 cm (3") and a maximum head of 10
Metres (33ft) between the bottom of the cold
water cistern and the top of the shower unit.

Under no circumstances should any of the
pipework supplying the shower unit rise
above the level of the bottom of the cold
water cistern.

3. The Redring Expressions Power Shower
incorporates a motor that is designed for
intermittent use and therefore should not be

used continuously for long periods of time.

The maximum length of time for any shower
should not exceed 15 minutes. A rest period
of 45 minutes is then required to allow the
motor to cool down.

4. Warning! Do not switch the shower on if

you suspect it of being frozen. Wait until
you are sure it has thawed out.

HOW TO USE YOUR 'REDRING'
POWER SHOWER

1. Ensure the electricity and water supplies are
turned on to the unit.

2. Your shower has 2 control knobs (see
diagram 1). Knob 'A' controls the Start/Stop
operation and the water flow rate of the
Shower unit. Knob 'B' controls the
temperature of water and also incorporates a
temperature limiter.

3. To start the shower turn knob 'A' clockwise
from the STOP position. Adjust the control
until a satisfactory flow rate is achieved. For
maximum flow, turn Knob 'A' fully clockwise.

4. To adjust the temperature, turn knob 'B'
clockwise to a lower number on the
temperature scale for a cooler shower and
anti-clockwise to a higher number on the
temperature scale for a warmer shower.
Please allow time for the hot water to reach
the shower unit from the storage cylinder.

Note: It is advisable to test the temperature
of the water with your hand before stepping
under the showerhead.

Diagram 1

5. To stop the shower, turn knob 'A' fully
anti-clockwise to the 'STOP' position.

6. Switch off the electricity at the ceiling switch
or local isolator.

7. As a safety feature, a temperature limiter is
provided so that the maximum working
temperature of the Shower unit can be set.

Knob 'A'
(Start/stop and
flow rate control).

Temperature
overide button.

Control knob
cap.

Knob 'B'
(Temperature
adjust).

2

Diagram 2

PCB Enclosure

Commissioning

Link

Solenoid

Bottom Fixing

Holes

Outlet

Top Fixing Holes

Motor
Terminal

Block
Rating Plate

Position
Cable

Clamp

Pump Assy

Cold Inlet
Port

Hot Inlet
Port

Side Section
Filter

Housing
Mixer

Chamber

The limiter is factory set but can be adjusted
to suit on site conditions. If the position of the
limiter requires adjustment please refer to the
section in the commissioning procedure
(page 9).

8. To override the stop position of the limiter,
press the button on Knob 'B' and continue
turning Knob 'B' anti-clockwise to a higher
number on the temperature scale until the
desired temperature is reached.

9. If the temperature limiter has been overridden,
knob 'B' MUST always be returned to the
normal temperature range when the shower is

a)

b)

Ring

Diagram 3

switched off. To do this, simply turn knob 'B'
clockwise past the limiter position. The button
does not need to be depressed when
returning to the normal temperature range.

10. There are 4 defined spray settings provided by
the handset (See diagram 3).

The ring can be turned in either direction to
change the spray pattern.

a) Spray: Powerful fine jets.
b) Massage: Sparkling pulsating massage.
c) Champagne: Soft, aerated, relaxing spray.
d) Pulse Mix: Massage/Spray Combination.

c)

d)

3

Diagram 4

The spray head rotates
through approximately 140

o

IN ORDER TO MAINTAIN THE
PERFORMANCE OF YOUR
SHOWER YOU MUST CLEAN
THE SHOWERHEAD.

NOTE: After use it is normal for some water to
drip from the shower head for a few moments.

HOW TO MAINTAIN YOUR
'REDRING' POWER SHOWER

All water contains particles of lime which build up
in the showerhead and unit reducing the
performance. It is therefore important to clean the
showerhead by dipping it in a suitable descaling
solution. The frequency of this will vary depending
on site water conditions.

Cleaning

WARNING: Switch off the electricity at the
isolating switch to avoid the shower
accidentally switching on during cleaning.

It is recommended that the shower unit and
accessories are cleaned using a soft cloth.

DO NOT use powerful abrasive or solvent
cleaning fluids.

WHAT TO DO IF THINGS GO
WRONG

Self Help

If the performance of the shower does deteriorate
in service make the following checks before
calling out the contractor. Any one of these
simple adjustments could restore the
performance.

a) System will

not operate

b)Pump

operates but
no water is
delivered

Check that the mains
electrical supply is switched
on.

Check that water is available
to both ports, and that all
isolating valves are open.
Check for an airlock in the
pump chamber. Repeat
commissioning procedure on
page 9.

c) Water too

cold

Turn Temperature Control Knob
(B) anti-clockwise to a higher
number on the temperature
scale (see diagram 1).
Check that hot water is
available in the hot water
cylinder. The ideal thermostat
setting for the hot water
storage cylinder is 60

o

F).

(140

o

C

Check that the HOT water
isolating valve is open.
If possible, reposition
temperature limiting device so
that more movement of Knob
'B' is allowed.

d)Water too

hot

Turn Temperature Control
Knob (B) clockwise to a lower
number on the temperature
scale. Check that the COLD
water isolating valve is open.

e) Poor spray

pattern

Clean showerhead (see
opposite).

Professional Service
If the above checks fail to restore the

performance, you should seek professional help.

The person who installed the shower is probably the
best one to repair it and is certainly the person to
contact if you have a problem in the guarantee
period.

The following additional checklist is provided for the
benefit of the qualified serviceman.

WARNING: SWITCH OFF THE ELECTRICITY AT
THE ISOLATING SWITCH BEFORE REMOVING
THE COVER TO MAKE CHECKS.

a) Pump

operates but
no water is
delivered

Check that the inlet connections
to the mixing chamber are piped
correctly.
Check that the shower and all
pipework are sited below the level
of the cold water tank and that it
is fully primed and is therefore not
airlocked. See commissioning
procedure (page 9).

4