Eemax SPEX3512 Installation Manual

INSTALLATION GUIDE AND OWNER’S MANUAL

FlowCo™

ELECTRIC INSTANTANEOUS WATER HEATERS

BEFORE ATTEMPTING ANY INSTALLATION, MODIFICATION OR SERVICE OF THIS

HEATER, MAKE SURE THE ELECTRICAL POWER IS DISCONNECTED.

Read and understand the instructions thoroughly before attempting the installation or service of this water
heater. Failure to follow the instructions can result in serious injury, death and/or property damage. The
warranty of the water heater will depend upon proper installation according to the instructions. Some heaters
come supplied with separate faucet aerators. If supplied, the aerator must be installed in the faucet for
optimum performance. The heater must only be used to heat water and must be installed in a location where it
is not subject to freezing temperatures. The manufacturer is not liable for any damages resulting from improper
installation or misuse.

The installation must conform to the latest requirements of the National Electrical Code and all applicable state
and local codes. This information is available through local authorities. You must understand the requirements
before beginning this installation.

This unit is not required by UL 499 to employ a temperature and pressure relief valve (T&P). You should check
with local codes to find out if one is required. If it is, it must be installed in the outlet hot water pipe between
the heater and the isolation valve.

IMPORTANT SAFETY INSTRUCTIONS

When using this electrical equipment, basic safety precautions should always be followed, including the
following:

READ AND FOLLOW ALL INSTRUCTIONS

Supply this appliance only from a grounded system. A green terminal (or a wire connector marked “G”, “GR,
“Ground”, or “GROUNDING”) is provided for wiring the appliance. To reduce the risk of electric shock, connect
this terminal or connector to the grounding terminal of the electric service or supply panel with a continuous
copper wire in accordance with the electrical installation code.

Contents

GENERAL .................................................................................................................................................................... 3

1) MOUNTING THE UNIT TO THE WALL .................................................................................................................... 4

2) PLUMBING HOOK-UP ............................................................................................................................................ 5

3) ELECTRICAL HOOK-UP ........................................................................................................................................... 8

4) COMMISSIONING THE HEATER ........................................................................................................................... 10

5) TROUBLESHOOTING ............................................................................................................................................ 13

6) PERIODIC MAINTENANCE .................................................................................................................................... 14

7) PART NUMBERS FOR FITTINGS, AERATORS AND AERATOR ADAPTORS ............................................................. 15

8) REPAIR PARTS FOR FLOWCO UNITS .................................................................................................................... 15

2

DO NOT INSTALL IN A BATH ENCLOSURE OR SHOWER STALL OR CONNECT TO A SALT-

REGENERATED WATER SOFTENER OR A WATER SUPPLY OF SALT WATER. ATTENTION:
NE PAS INSTALLER DANS UNE BAIGNOIRE OU UNE CABINE DE DOUCHE ET NE PAS BRANCHER À UN
ADOUCISSEUR D’EAU RÉGÉNÉRÉ AVEC DU SEL OU À UN APPROVISIONNEMENT EN EAU SALÉE.

(CANADIAN INSTALLATIONS ONLY) CONNECT ONLY TO A CIRCUIT PROTECTED BY A
CLASS A GROUND FAULT CIRCUIT INTERRUPTER. ATTENTION: BRANCHER UNIQUEMENT

À UN CIRCUIT PROTÉGÉ PAR UN DISJONCTEUR DE FUITE DE TERRE DE CLASSE A.

(CANADIAN INSTALLATIONS ONLY) USE COPPER CONDUCTORS ONLY. USE BONDING

CONDUCTOR IN ACCORDANCE WITH THE CANADIAN ELECTRICAL CODE PART I. UTILISEZ
DEZ CONDUCTEURS EN CUIVE UNIQUEMENT. UTILISEZ DES CONDUCTEURS DE MIZE À LA MASSE
CONFORMEMENT AU CODE CANADIEN DE L’ÉLECTRICITÉ, PARTIE I.

SAVE THESE INSTRUCTIONS

GENERAL

The Eemax, Inc.™ FlowCo is a non-thermostatic electric tankless water heater. FlowCo is specifically designed to
take in cold water and heat it to temperatures suitable for handwashing and other fixed-flow applications.

To obtain optimum performance and energy savings, the unit should be located as close as possible to the point­of-use. The unit is supplied with compression rings and nuts suitable for direct coupling to 3/8” copper or PEX™
piping. Do not use additional screwed fittings, pipe dope or teflon tape – doing so will void the warranty. DO
NOT SOLDER PIPES WHILE THE UNIT IS INSTALLED as serious damage to the heater will result and the warranty
will be voided.

3

1) MOUNTING THE UNIT TO THE WALL

THIS HEATER MUST BE INSTALLED IN A LOCATION WHERE IT IS NOT SUBJECT TO

1.

2.

3.

FREEZING TEMPERATURES.

The heater should be mounted on the wall under the sink, as close to the point-of-use as possible. Ideal

position is fittings pointed down, but the heater can be mounted in any orientation.

Make sure to leave a minimum of 8 inches service

clearance at the end OPPOSITE the fittings.

Remove the cover and fasten to the wall using the

four mounting holes at each corner of the back plate.
Replace the cover.

4

2) PLUMBING HOOK-UP

Turn On Flow Rate, GPM (LPM)

0.2

(0.76)

0.25

(0.95)

0.3

(1.14)

0.4

(1.51)

0.5

(1.89)

0.7

(2.65)

0.8

(3.03)

SPEX1812

•

SPEX2412

•

SPEX3012

•

SPEX3512

•

SPEX35

•

SPEX48

•

SPEX55

•

SPEX65

•

SPEX75

•

SPEX95

•

SPEX3208

•

SPEX4208

•

SPEX8208

•

SPEX3277

•

SPEX4277

•

SPEX60

•

SPEX80

•

SPEX90

•

SPEX100

•

NEVER SUBSTITUTE THREADED PIPE FITTINGS USING PIPE DOPE OR TEFLON TAPE AND

The heater is supplied with 3/8” brass compression fittings that are compatible with either copper or plastic
pipes. Make sure these fittings are used for this installation. Contact your Eemax representative for further
information.

NEVER SOLDER ANY PIPE CONNECTIONS WHILE ATTACHED TO THIS HEATER BECAUSE

DAMAGE TO THE HEATER WILL RESULT. DOING THIS WILL VOID THE WARRANTY!

Eemax strongly recommends that the heater be supplied directly from the main cold water trunk line when
possible. This helps to avoid a potential water flow interruption to the heater which could lead to a failure of the
heating element.

System Requirements:

• Minimum/maximum working pressure: 30 PSI/150 PSI

• Optimal operating pressure range: 35 to 80 PSI

• Minimum turn on flow rate is model dependent (refer to the table below)

Base Model*

*Special suffixed models (i.e. CA, etc.), will have identical temperature rises as their base model

For optimum performance, Eemax recommends the use of isolation valves (full flow ball type) on the inlet and
outlet pipes.

5