Marey SANTON User manual

ELECTRIC HEATER
INSTRUCTION MANUAL
SANTON MODEL
by
Keep this manual with you after your unit has been installed,
you may need it for further technical information.

02 03
INTRODUCTION
PACK CONTENTS
SAFETY
CUSTOMER SERVICE
OTHER PRODUCTS
TECHNICAL SPECIFICATIONS
INTERNAL COMPONENTS
SITE REQUIREMENTS
CONNECTING TO SERVICES
COMMISSIONED
MULTIPLE INSTALLATIONS
FAULT FINDING
SPARE PARTS
04
04
04
06
07
07
10
11
12
13
14
15
15
Congratulations!
You'vejustpurchased a new Santon tankless waterheater and will
soon begin to enjoy the benefits of “going tankless.”
Take the time to thoroughly read and understand this safety and
installationmanualinitsentiretybeforeyouattempttoinstallyournew
Santon tankless water heater, as it contains important safety tips and
instructions.
Please carefully read all instructions and warnings. If you need
assistance or have any questions please contact us at:
Please keep this manual for future reference.
1-512-332-2229

04 05
Thank you for purchasing a Marey Power Pack. The Power Pack unvented
pressure system water heater is manufactured to the highest standards and has
beendesignedtomeetallthelatestrelevantsafetyspecifications.
ThisPowerPackwaterheatermustbeinstalled,commissionedandmaintainedby
a competent person. Please read and understand these instructions prior to
installing your Power Pack unvented pressure system water heater. Particular
attentionshouldbepaidtothesectionheadedSAFETY.
Thisapplianceisnotintendedforusebypersons(includingchildren)withreduced
physical, sensory or mental capabilities, or lack of experience and knowledge,
unless they have been given supervision or instruction concerning the use of the
appliancebyapersonresponsiblefortheirsafety.Childrenshouldbesupervisedto
ensurethattheydonotplaywiththeappliance.
Heater
Fixingscrewsandplugs
InstallationandUserInstructions
Connections:
Inlet/Outletconnection-1/2"BSP
Waterentrypoint-bottom
Cableentrypoint-bottom/rear
Electrical:
Modelnumbers
7.0kW-94805005
9.0kW-94805006
Electricalrating.................................................................6.4/7.0kW@230/240V
..........................................................................................8.3/9.0kW@230/240V
RatedPressure:
7kW/9kW
Materials:
Backplate,cover-ABS
Element(s)-Coppersheathedrodtype.
Dimensions:
Height-8.27"-210mm
Width-6.30"-160mm
Depth-4.33"-104mm
StandardsandApprovals:
ComplieswiththerequirementofUL.
ComplieswithEuropeanCommunityDirectives(CE).
MODEL
TEMPERATURE RISE AT FLOW RATE IN U.S. GALLONS
A.C. ONLY
0.5 GPM
0,75 GPM
1.0 GPM
1.5 GPM
2.0 GPM
2.5 GPM
WATTS
VOLTS
AMPS
WIRE
SIZE
94 805
005
95º F
63º F
47º F
31º F
23º F
19º F
7000
240
29.2
8AWG
94 805
006
123º F
82º F
61º F
41º F
30º F
24º F
9000
240
37.5
6AWG
Fig. 01

AVERAGE COLD WATER TEMPERATURE SUMMER 80°F WINTER 70°F. OUT-
LET TEMPERATURE EQUALS INLET TEMPERATURE PLUS TEMPERATURE
RISE. TEMPERATURE RISES ARE BASED ON kW LOADING AT 240 VOLTS
ARE SHOWNABOVE.TEMPERATURE RISES IN EXCESS OF 110°FARE NOT
RECOMMENDED.
LowVoltageExample
A reduction in input voltage will result in a reduction in temperature. Model
94805005connectedtoa220voltsupplywithaflowrateof0.75GPMwillresultina
53°Ftemperatureriseinsteadofa63°Ftemperaturerise.Toincreasetemperature,
reducewaterflowrate.
ImportantInformation
2.1. Products designed by Santon are to British and European and UL Standards.
These appliances are safe and without risk, provided they are installed, used and
maintained in good working order in accordance with our instructions and
recommendations.
2.2. Pleasereadandunderstandtheseinstructionsbeforestartingworkandretain
themforlateruse.
2.3.DONOToperatetheapplianceifitis frozen,orsuspected ofbeingfrozen.See
faultfindingtable.
2.4. These heaters are of the closed outlet type (unvented pressure system) and
aresuitableforconnectiontonormalcoldwatermainssuppliesuptoamaximumof
0.5MPa(5bar).
2.5.DONOToperatetheapplianceif:
1.Waterceasestoflowduringuse.
2.Waterhasenteredinsidetheunitbecauseofanincorrectlyfittedcover.
3.Iftheapplianceisdamaged.
2.6.ISOLATEtheelectricalandwatersuppliesbeforeremovingthecover.
2.7. ISOLATE the electrical and water supplies BEFORE proceeding with
installationorservicing.
WaterRequirements
3.1. The heater must be connected via the pressure relief valve to a cold supply
having a minimum pressure of 0.1Mpa (1bar) and a maximum of 0.5Mpa (5bar).
Both inlet and outlet connections are suitable for 5/8" diameter copper pipe. Outlet
pipefromunitmayreduceto10mmdiametertoimproveperformance.
3.2. The tee piece and expansion relief valve must be situated where shown and
the relief valve discharge port plumbed via an air break (tundish) to a safe, visible
placewherethereisnorisktopersons.
3.3. The discharge pipe must fall continuously from the valve outlets and be
unobstructed.
0706
Fig. 02

3.4. Theprovisionofaservicestopvalveinthecoldsupplypipewillassistinthe
event of any subsequent servicing or maintenance. No non return valve or
restrictiontobefittedwithinthemainssupplytotheheater.
3.5. To obtain optimum performance a flow restrictor isolating ball valve must be
fitted where shown (see figure 3). This provides the user with the means to govern
the flow (and therefore temperature which is dependent upon flow) at the outlet
(see5.3SETTINGFLOWRATE).
This unit does not require an Pressure Relief Valve by UL standard, it is
recomendedthatyoucheckwiththelocalcodestofindoutwhether thisisrequired.
IfoneisrequiredpleaserefertoFigure3.
ElectricalRequirements
3.6.Thisappliancemustbeearthed.
3.7. The installation must comply with national/local code of practices and
ElectricitySupplyAuthorities requirements.All rules and requirements must be
strictlyfollowedtosafeguard against the hazardsaffectinglifeand property during
and after installation of this product and during subsequent servicing and
maintenance.
3.8.ThePowerPackheatermustonlybeconnectedtoa230/240Vacsupply.
3.9. Before making any electrical connections within the installation, make sure
that no terminal is live. If in doubt, SWITCH OFF the whole installation at the
consumerunitorswitchfuse(wherefitted).
3.10. The Power Pack heater must be connected to its own independent electrical
circuit.
3.11. It is a requirement that the branch circuit protection should be 40A for 7kw
PowerPackand50Aforthe9kwPowerPack.
0908
Fig. 03
Fig. 04
Fig. 05

Preparation
4.1. Removethe fixing screw which holds the front cover onto the back plate of the
PowerPackheater.Carefullyremovethecover.
4.2. The unit must be mounted on a flat surface, which covers the full width and
lengthofthebackplate.Itisimportantthatthewallsurfaceisflatotherwisedifficulty
maybeencounteredwhenfittingthecover.
4.3. DO NOT fit the Power Pack to the wall and tile up to the case. It must be fitted
ontoafinishedflatandevenwallsurface.Thisallowsremovalforservicing.
CableEntry
4.4. Cable entry can be from the rear (preferred see Figure 5) or from the bottom.
When opting for bottom entry make cut-out to suit cable before fitting back plate to
thewall.
4.5.FixthePowerPackheaterlooselytothewall.Thewallplugsprovidedare
suitableformostbrickwalls(usea0.26inchdiametermasonrydrill),butifyourwall
is plasterboard or soft building block, you should use special wall plugs and an
appropriatedrill,obtainablefrommosthardwarestores.
Plumbing
4.6. The Power Pack should be fitted as close as possible to the point to be
supplied, ideally within 4/5 feet as the length of the outlet pipe affects the initial
temperature from the outlet. If used to supply a shower, the Power Pack must be
installedoutsidetheshowercubicleorshowerroom.
4.7. Decide where to connect to the water mains for your feed to the Power Pack.
Ensurethatthepipeyouhaveselected is not a gas pipe orahotwaterpipeorfrom
acoldwaterstoragetank.
4.8.Cutthenecessarypipeworktolength,assembleandofferuptotheinstallation
before making any soldered joints. Ensure that the pipe is the correct length, as
shorteningitcanbedifficultoncejointshavebeenmade.
4.9. An isolating stop valve MUST be incorporated to the main water supply to
complywithWaterRegulations.
4.10.Assembletheinstallationbeforemakinganysolderedjointstoensurethatthe
pipe is the correct length. DO NOT use jointing compounds on any pipe fittings for
theinstallation.
4.11.Removetheunitbeforesolderingtheconnections.
4.12. It is essential to flush the pipe in order to clear debris, particles of solder and
swarf.
4.13.Turnthewateroffafterflushingusingtheisolatingstopvalve.
4.14.ConnectthecoldwatersupplypipetotheinletofthePowerPack,thisisa1/2"
BSPconnection.
4.15. Fittop and bottom screws and secure the back plate to the wall ensuring that
itislevel.
4.16.ConnectallothercomponentsasperFigure3.
4.17. Turn the isolating stop valve on slowly and check for leaks in all pipe work,
rectify as necessary.
4.18.Turnofftheisolatingstopvalve.
4.19.Placethecoverontothebackplate.
4.20.Securethecovertobackplateusingscrewsprovided.
5.1. Once installed, the heater will operate automatically when the outlet valve is
opened. The valve must be opened fully to obtain the set flow/temperature.
Reducedflowattheoutletwillresultinhotterwaterbeingdelivered.
5.2. On closing the outlet valve the heating element will automatically shut down
providedthistaphasbeenfullyturnedoffbytheuser.
SettingFlowRate
5.3. It is important to note when setting the flow rate/temperature that 118°F is the
pointatwhichtheaveragepersoncannotholdhisorherhandunderastreamof
water. Under most circumstances water temperature need not be higher than this
anditisrecommendedthatthistemperatureisnotexceeded.
5.5.Theseheaters willsupplyonly oneoutletatanytimeandmustbecontrolledby
asingleoutletvalve.DONOTUSEWITHMIXERVALVES.
1110

6.1. When larger volumes of water are required than can be provided by one
heater, multiple installation can be made by connecting a number of heaters in
PARALLELof the cold feed manifold (See Figure 6).This is the ONLY method that
isrecommended.DONOTplumbtheseheatersinseries.
6.2. To set the heaters in this arrangement use the appropriate procedure as
describedpreviously.Eachheaterinparallelmustbesetindividually.
6.3.Inthisapplicationrestrictorscapableofclosingflowcompletelyshouldbeused
so that as each heater is set in turn, the other heaters in the installation may be
isolated.
NOTE - In this application it is advisable especially where low flow rates exist to
plumbthecoldmanifoldin7/8"pipewith5/8"pipespurstoeachheater.*Not
This unit does not require an Pressure Relief Valve by UL standard, it is
recomendedthatyoucheckwiththelocalcodestofindoutwhether thisisrequired.
IfoneisrequiredpleaserefertoFigure6.
YOUR MAREY POWER PACK SHOULD GIVE TROUBLE FREE OPERATION,
HOWEVER SHOULD A FAULT OCCUR THE TABLE BELOW SHOULD ALLOW
MOST FAULTS TO BE IDENTIFIED. FAULT FINDING SHOULD ONLY BE
CARRIEDOUTBYACOMPETENTPERSON.
1312
SYMPTOM POSSIBLE CAUSE REMEDY
1. Water too hot. A. Water flow too low. Increase the flow by turning the water control.
A. Electrical power to
the power pack heater
is off.
Ensure that the electronics to the power pack
is switched on the neon is lit.
B. Water flow too high. Reduce the flow by turning the water control.
C. Element fault. Check for open circuit.
2. Water too cold.
3. Temperature
varies while
showering,
cycling
hot/cold.
A. Pressure switch is
operating, normally
making a click as it
does so.
Water pressure/flow issue.
B. Input pressure is
below 1.0 bar (14.5 psi)
flow is not stable.
Ensure that your stop cock and servicing valve
are opened fully.
4. Power on
indicator not lit.
Isolating switch
ON but its neon
not lit.
A. Cartridge fuse or
miniture circuit breaker
(mcb) has operated
in your fuse box (or
consumer unit) or
switch fuse.
Switch off shower and isolating switch.
Renew fuse, reset the mcb. If they operate
a second time, contact a qualified electrician.
B. Residual current
device (rcd) or (earth
leakage circuit breaker)
has operated.
Follow the same procedure as above. If this
has happened with a split load consumer unit
on initial installation, check that the neutral core
of the power pak feed cable is connected to the
protected neutral bar of the unit.
5. Water emerges
from pressure
relief valve.
A. PRV has operated. 1. Switch off immediately at isolating switch.
2. Turn water off at the servicing valve (if fitted)
or stop valve.
3. Contact Marey Customer Service.
Fig. 06 *Not included.

The following comprehensive list of spare parts is available for your Marey Power
Pack. Please refer to the rating label on the side of your heater before ordering to
ensurethecorrectsparepartisobtained.
DO NO REPLACE WITH PARTS NOT RECOMMENDED BY SANTON, AS THIS
WILL INVALIDATE YOUR GUARANTEE AND MAY RENDER THE
INSTALLATIONDANGEROUS.
DescriptionCodeNo.
1.HeatExchangerAssembly7.0kW......................................................95606965
HeatExchangerAssembly9.0kW.......................................................95606966
2.Temperaturelimiter1.........................................................................95612035
3.Temperaturelimiter2........................................................................95612036
4.PressureDifferentialSwitchAssembly...............................................95613004
5.PowerPackCover.............................................................................95614107
6.NeonAssembly..................................................................................95615058
7.InletBossAssembly...........................................................................95607106
8.OutletBossAssembly........................................................................95607109
1514
Fig. 07
MINI MAREY
AQUAMATIC POWER GAS
SANTON
GAS PORTABLE POWER PAK
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team.
Pleasefeelfreetocontact us if youhaveanyquestionsabout our products, warranty
service, or if you need assistance installing a unit. We also strive for continuous
improvement, so we welcome your comments, feedback and s uggestions.
1-512-332-2229
[e-mail]
Delbrey Street, 211
San Juan, Puerto Rico
00912
Tel. [phone]
www.marey.com