Hubbell Electric Heater EMV User Manual

M

ODEL EMV

Commercial Electric

Commercial Electric
Water Heater

Water Heater

Provides Tepid Water For Emergency Fixtures

Features

■

Heavy Duty Construction

� Hydrastone cement lining provides tank longevity
� Copper-silicon alloy tappings cannot rust or

corrode

� High impact composite jacket cannot rust or

corrode and eliminates potential damage during
installation and transit

� 3" thick polyurethane foam insulation reduces

standby heat loss by over 24% compared to
industry standard 2" insulated tanks

■

Packaged System

� Factory packaged and piped mixing valve

simplies installation and ensures the safe and
reliable supply of tepid water

� All electrical operating controls are factory

selected and wired to ensure reliable operation

� Dial gauge provides visual indication of water

temperature and pressure

■

Safety

� Mixing valve designed specically for emergency

drench systems ensures a constant ow of tepid
water

� Mixing valve prohibits delivery of overheated water

to prevent scalding

� Provides tepid water even when an accident

causes a loss of electric power

� Reduces the risk of Legionella because water is

stored at an elevated temperature

■

Reliable

� Full ve (5) year non pro-rated tank warranty
� Each valve is performance tested

at the factory to ensure proper
operation

GLASS

GLASS

LINING

LINING

NO

NO

Model EMV

The model EMV is designed specically for tepid water
delivery to an emergency drench system

A Heavy Duty, Reliable Source For Tepid Water Delivery

The Hubbell model EMV water heater is a packaged
system designed to meet the requirements of ANSI
Z358.1-2014 for tepid water delivery to an emergency
drench system. This heavy-duty water heater is constructed
of a carbon steel tank and internally lined with
Hydrastone cement to ensure tank longevity when operating
at elevated temperatures, and is fully insulated with 3"
thick polyurethane foam to minimize stand-by heat loss.
The water heater is packaged with a mixing valve specically

/ISEA

1

/2" thick

Packaged Heater Provides High Volume Tepid Water

designed, tested and proven for use in emergency safety
shower/face/eyewash applications. The entire package
including the mixing valve is factory piped and mounted
to the water heater to provide single source responsibility.

When you specify and install a Hubbell Model EMV, you
will have the condence in knowing that the owner will be
provided with a long lasting, safe and dependable source of
tepid water for their emergency drench system needs.

Safety StandardS

OSHA 29 CFR 1910.151 states the following:
When the eyes or body of any person may be ex­posed to injurious corrosive, toxic, or ammable
materials, suitable facilities for quick drenching or
ushing of the eyes and body shall be provided
within the work area for immediate emergency
use.

ANSI/ISEA Z358.1-2014 Standard states the
following: Delivered flushing fluid temperature

shall be tepid. This standard also establishes
minimum performance and use requirements for
eyewash and shower equipment for the emergen­cy treatment of the eyes or body of a person who
has been exposed to injurious materials.

■

The shower must have a minimum of
20 GPM at 30 psi for 15 minutes of controlled

low [Para 4.1.3]

■

The eyewash must have a minimum of

0.4 GPM at 30 psi for 15 minutes of controlled

low [Para 5.1.6]

■

The eye/face wash must have a minimum of

3.0 GPM at 30 psi for 15 minutes of controlled

low [Para 6.1.6]

■

Units must meet all individual performance
requirements when all components are
operated simultaneously [Para 7.1]

■

In circumstances where chemical reaction
is accelerated by ushing uid temperature,
a facilities safety/health advisor should be
consulted for the optimum temperature.

[Para 6.4.6]

How Does THe Hubbell uniT
AcHieve THese RequiRemenTs?

The Hubbell EMV water heater system

provides high volume tepid water for safety
drench systems by integrating a specially de­signed mixing valve with a high quality cement
lined electric storage water heater. The model
EMV is designed to maintain 120 gallons of
water at 170°F. The volume of water at this
temperature is necessary to achieve the final
flow rate of 23 GPM for 15 minutes of tepid
water. When an emergency drench apparatus
is used, the integrated mixing valve blends
170°F water from the tank with incoming cold
water to achieve a continuous flow of app oxi­mately 85°F tepid water to operate simultane­ously a safety shower and an eye/face wash
fixture.

Note: For 30 GPM shower heads the Hubbell
EMV will provide 75

o

F water for 15 minutes.

The Hubbell model EMV satisfies the tepid
water requirements for a safety drench
system.

The Hubbell EMV package is specifically designed
to meet your emergency drench system needs by
incorporating the following critical features:

The carbon steel tank is internally lined with

A

specially formulated hydrastone cement and
does not require anodic protection. This lining is
critical to the longevity of the tank when storing
hot water at elevated temperatures.

A

The mixing valve is specifically designed for

B

emergency safety drench systems and is factory
piped and packaged with the water heater tank
to simplify installation and ensure a safe and
dependable system.

The Hubbell EMV Model has 3" foam insulation

C

which reduces stand-by heat losses by over 24%
compared to 2" insulated tanks. This provides
the owner with a highly efficient and economical
solution for emergency drench systems.

Unlike instantaneous heaters, the Hubbell model

D

EMV is unaffected by the loss of electric power
in its ability to provide tepid water. Furthermore,
the dial temperature gauge provides the operator
with positive visual verification that the unit is at
temperature.

2

Mixing ValVe

OperatiOnal featureS

Packaged with the Hubbell model EMV is a triple
redundant, thermostatic pressure balanced

valve designed specifically for emergency safety
shower/face/eyewash applications. The valve is
factory mounted and piped to the water heater.
After water flow is activated at the emergency
station, the outlet water temperature from the
model EMV package will be maintained at 85°F
tepid temperature. The Hubbell EMV is able to
achieve the high volume demand required for a
safety drench system by mixing the 170°F water
in the tank with incoming cold water. The mixing
valve meets OSHA and ANSI requirements and
is capable of providing constant 85°F output
regardless of inlet pressure and temperature
variations, and the temperature setting is tamper
proof and cannot be inadvertently adjusted in the
field. The water temperature is not warm enough
to open skin pores and not cold enough
to deter usage. The valve is capable of providing
a full range of flows from the smallest flow of 0.4
GPM for an eyewash to the combined 23 GPM
flow for a simultaneous demand of shower,
eyewash, and face wash system.

Safety featureS

The mixing valve incorporates a pressure sensing
controller with a valve actuator that senses the
water pressure on both the hot and cold water
inlet connections. If hot water pressure is not
present then the actuator overrides the mixing
valve and a flow of cold water is allowed. If no

cold-water pressure is available at the mixing
valve inlet then the hot water port will close
to prevent overheated water from exiting the
mixing valve. The valve also includes a safety
override feature that continuously senses the
final mixed water temperature. If the final water
temperature is overheated, the valve
automatically closes the hot water port and
fully opens the cold water port. In any of these
fault conditions, the Hubbell EMV valve will
continue to provide a full flow of water as per
the ANSI standard with no additional pressure
drop.

Hubbell EMV Package

T&P Relief Valve

Cold Water

Feed

Backow

Preventor

(If Required)

Y Strainer

Pressure Relief
Device or Thermal
Expansion Tank

Vacuum Breaker

Air Vent Valve

Combination
Temperature

& Pressure

Mixing

Valve

NOTE: For systems requiring recirculation see Hubbell IOM for typical pipping schematic.

Gauge

To D r a i n

Drain
Valve

Heat Trace

for Freeze
Protection

(If Required)

Solar Gain
Protection

Valve

To D r a i n

Safety Shower

Face/Eyewash

Freeze Protection
(To Atmosphere)

Floor Drain

3

Outline Dimensions

A

F

19"

Withdrawal

Space

Automatic Air Vent Valve

Tank Cross Section

1

/2"

Steel

Pressure

Vessel

Protective Jacket

Tepid Water Outlet

Thermostat Sensor

3" Foam Insulation

Cement

Lining

Mixing Valve

Model EMV
Dimensional Data

T&P Gauge

Hi-Limit

Thermostat

Operating
Thermostat

D

C

Cold Water Inlet Cold Water Inlet

Heating

Element

E

B

Drain Valve

Dimensions (Inches)

Storage Base Floor to Floor to Piping Floor Shipping
Capacity Model Diameter Height Inlet Outlet Height to T&P Weight
(Gallons) Number "A" "B" "C" "D" "E" "F" (LBS)

120 EMV120 30 69.25 8 24 8 10 875

Note: Alternate storage capacities are available for smaller or larger requirements. Please
consult factory for sizing requirements.

Why you need a safety shower/eyewash station

■

Water that is too cold can discourage workers from washing down

for the required 15 minutes. (It can cause hypothermia)

■ Water that is too hot can cause third degree burns in as little
as one second and can accelerate a harmful chemical reaction

■ What you need is an easy-to-use, reliable system that pro­vides water at the recommended temperature

4

Model EMV

Water Heater Specications

Tank: Hydrastone Cement

Lined Steel

Storage Capacity: 120 Gallons (see note)

Orientation: Vertical

Voltages: 120 thru 600 Volt

Phase: 1 or 3

Cold Water
Inlet Size: 1

Tepid Water
Outlet Size: 1

Drain Size:

Relief Valve Size:

Relief Valve Type: T&P, 210

Thermostat Range: 100 -180

Φ

1

/2" Female NPT

1

/4" Female NPT

3

/4" GHT

3

/4" Female NPT

o

F, 150 psi

o

F

Piping: Copper Tubing

Note: Alternate storage capacities are available for

smaller or larger requirements. Please consult factory
for sizing requirements.

Formulas To Solve For:

tO SOlVe fOr tepid Water preSSure drOp:

Mixing Valve Cv: 10.0

Pressure Drop at
20 GPM: 4 psi

Minimum
Supply Pressure: 30 psi

Hi-Limit: 190

o

F

Design WP: 150 psi

Design TP: 300 psi

Elements: Copper Sheathed

Insulation: 3" Polyurethane Foam

Tank Warranty

Standard: 5 Year Non Pro-Rated
Optional: 10 Year Non Pro-Rated

Electrical Warranty: 1 Year

Jacket: High Impact Colorized

Composite

Color:

WhitewithBlackTrim

Metric cOnVerSiOn

GPM2

2

Cv

= ∆P

The Hubbell EMV mixing valve Cv = 10.0
Example: Determine pressure drop across Hubbell

model EMV with a 20 GPM flo

202
102 100

400

=

= 4 psi pressure drop

Note: The Hubbell EMV valve maintains the same pressure drop
even when the valve is in cold water bypass mode.

tO SOlVe fOr the percentage Of hOt Water tO final
Mixed Water:

M-C

= % of hot to mixed water

H-C

Example: Determine the percent of 170°F hot water required for
a mixed temperature of 85°F when cold water is 50°F

85-50
170-50 120

M = Mixed water temperature
C = Cold water temperature
H = Hot water temperature

35

=

= 29%

Therefore, 29% of the mixed 85°F
water stream must be 170°F.

Watts Rating in GPH

Recovery

50-170°F 120 V 208 V 240 V 277 V 480 V

1500 5.1 13 7 6 5 N.A.
3000 10.2 N.A. 14 13 11 6
4000 13.6 N.A. 19 17 14 8
4500 15.3 N.A. 22 19 16 9
6000 20.5 N.A. 29 25 22 13

Note: For three phase rating please reference Hubbell
Model SE brochure for KW selection

Amperage Ratings

Single Phase Voltages

Liters x 0.2641 = Gallons

Gallons x 3.79 = Liters

Gallons x 0.003785 = m

m3 x 264.2 = Gallons

O

C ∆T = 1.8OF ∆T

1

O

F = (OC x 1.8) + 32

O

C = (OF - 32) x 0.556

psi x 0.06896 = Bar

Bar x 14.5 = psi

psi x 6.86 = kPa

kPa x 0.1456 = psi

2

x 14.28 = psi

Kg/cm

psi x 0.07 = Kg/cm

Lbs x 0.4536 = Kg

Kg x 2.2 = Lbs

Watts/Sq.Cm. x 6.4 = Watts/Sq.In.

Watts/Sq.In. x 0.155 = Watts/Sq.Cm.

3

2

5

PC Number Description

1 Hydrastone cement Lined Tank

2 3" Polyurethane Foam Insulation

13

o

45

1

2

3

5

Top View

4

5

6

7

10"

8

9

12

Withdrawal

o

45

19”

Space

General Characteristics

3 Corrosion Resistant Jacket

4 Air Vent Valve

5 Relief Valve Connection

6 Dial Temperature Pressure Gauge

7 Hi-Limit Thermostat

8 Mixing Valve

9 Tepid Water Outlet

10 Tank Operating Thermostat

11 Heating Element

12 Cold Water Inlet

13 Drain Connection

Gallon Storage Capacity

Total KW Rating

Volts

Phase

50/60 Hertz

85°F Mixing Valve Set Temperature

Full Load Amperage

1 1/ 2" MNPT Cold Water Inlet Size

1 1/ 4" FNPT Tepid Water Outlet Size

Dry Weight (Lbs.)

Wet Weight (Lbs.)

10

11

12

Front View

Notes:

1. Storage tank rated for 150 psi WP

2. ASME rated T&P relief valve factory
installed and piped to 12" from floor

3. All electrical controls are factory wired and
tested

4. Mixing valve (pc. 8) is factory set,
calibrated and tested to deliver 85°F water

13

Tepid Water Delivery

GPM for

min @

85°F

Recovery Rating

GPH from

to

(

Tepid Water Heating System

The Electric Heater Company

Model No.:

Location:

QT Y:

Stratford, CT

■

°F ∆T)

Job Name:

Date:

6

Optional Equipment

1. Low temperature alarm dry contacts (alarm

temperature is adjustable from 30-110°F).

2. Hi temperature alarm dry contacts (alarm

temperature is the hi-limit set point, which is
adjustable from 100-240°F).

3. Outdoor weather package. Includes a 304

Stainless Steel outer protective jacket, weather
resistant electrical housing and 6" high tank legs
to raise the entire unit off the floor.

Flow alarm indication dry contact to signal that

4.

there is tepid water flow (minimum flow rate to
activate 7GPM).

5. Explosion resistant construction for installation

in a hazardous location. Standard is class 1,
Division 2, Group B. If application requires other
please specify Class, Division and Group rating
required.

Three phase voltage please specify.

6.

volts kw amps.

ASME tank construction.

7.

8.

Alternate mixing valve tepid water set temperature
75°F. Note: 85°F is standard set temperature. Mixing
valves are not intended to

Mount and pipe multiple (two or three) storage

9.

be field adjustable.

tanks on one skid to meet the needs of larger
demand systems.



10.

NEMA 4X enclosure provides added protection
for the mixing valve in outdoor environments.
( Optional: Enclosure air purge fittings and
stainless steel inlet fittings for corr

osive

environments).



11.

Alternate heating source. Factory installed heat
exchanger to utilize (

Optional: steam or

boiler water). Consult factory for details



12.

Integrally welded seismic attachment points.

13.

All hot and cold water piping on the heater
package to be heat traced from the factory for
freeze protection, to include an insulation jacket for
the thermostatic mixing valve. Please note that all
external piping to the heater need to be heat
traced in the field.

Model EMV Number Designation

eMV

■

Step 1

Model:
EMV

■

Step 2

Storage Capacity:

120 U.S. Gallons
Optional storage

capacities available

—

Example: EMV120-85-3SLS

Model EMV emergency tepid water delivery system
with a storage capacity of 120 Gallons, 85°F set point
of the mixing valve and a 3 KW rating. Storage tank is
lined with Hydrastone cement and operates at 240 Volts
single-phase power.

Option Note

Any and all optional equipment for a water heater
must be called out in the written specications. A
model number in and of itself does not reect any
optional equipment selected.

—

85

■

Step 3

Tepid Water
Temperature:

85°F
Optional:

75°F

Sl120

■

Step 4

Standard
Ratings:

1.5, 3, 4,

4.5, 6

■

Step 5

Tank Type:
SL =

Hydrastone
Cement lined
tank

SS =

Solid Stainless
Steel

CS =

Solid Copper­Silicon

Benets of a tepid water safety

shower/eyewash station:

■

Encourage user to wash down long enough to
be effective

■

Prevent further injury

■

Get employee back to work fast

■

Provide employee with a feeling of security about
his work environment

Occupational Injuries

■

Over 12,000 cases of non fatal chemical burns
involving days away from work annually

■

Non fatal chemical burns result in a median of 2
days away from work

■

Average of 118 fatalities annually from exposure
to caustic, noxious, or allergenic substances

(Source: Bureau of Labor Statistics)

■

Step 6

Voltage / Phase / Hz:

A = 120-1-60
RS = 208-1-60
R = 208-3-60
S = 240-1-60
T = 240-3-60
W = 277-1-60
T3 = 380-3-50/60
T7 = 415-3-50/60
T5 = 440-3-60
T4 = 480-3-60
T4S = 480-1-60
T6 = 600-3-60

7

Job Name

RepReseNtative

eNgiNeeR

coNtRactoR

The Electric Heater Company

■ P.O. Box 288 ■ Stratford, CT 06615-0288 ■ Phone: [phone] ■ Fax: [phone]

[e-mail]

■ www.hubbellheaters.com

Committed to continuous improvement...

Continuing research results in product improvement; therefore specications are subject to

change without notice. For the most updated information, consult the factory directly.

MadeintheU.S.A.

Master Specication: Model EMV

GENERAL & APPROVALS

Contractor shall supply and install with all codes and authorities having jurisdiction a factory packaged water heater for
emergency drench application. System shall be Hubbell Model No.
Water Delivery System. Unit shall be designed to operate at
maximum load of

shower/face/eyewash fixtur

watts. The system shall be specifically designed for tepid water delivery to emergency safety

es in accordance with ANSI Z358.1-2014. Packaged system shall consist of a long-life electric

volts, phase, and 60 hertz with a

Emergency Tepid

water heater with integrally mounted, factory supplied, calibrated and performance tested, triple redundant thermostatic
pressure balanced mixing valve system. Unit shall be supplied ready for electrical and plumbing service connections. Field
assembled systems shall not be considered as equals. Substitutions must meet the following specifications minimum to be
considered for approval as equal.

CONSTRUCTION

A. The electric water heater shall be a 120 gallon capacity vertical carbon steel tank lined with 1/2" thick Hydrastone cement

to ensure maximum operating life at elevated temperatures. Heater shall not require any type of anodic protection.

1

B. Tank inlet and outlet water connections shall be a minimum of 1

tappings will not be acceptable.

C. Tank shall be covered by a minimum 3" thick polyurethane foam insulation to minimize stand-by heat loss over the life of

the system. Due to the increased cost of operation, systems with less than 3" insulation will not be acceptable.

D. Outer protective jacket shall be a dent resistant composite jacket to resist rust and corrosion.

E. Tepid water temperature control shall be provided by an integrally piped and packaged thermostatic mixing valve. Valve

shall be specifically designed, tested and manufacture-designated for use in emergency safety drench
applications. Delivery water set point shall be 85°F. (Optional 75°F temperature available.)

F. Temperature safety system shall consist of a diaphragm operated valve actuator to ensure a continuous delivery flow of

tepid water. The valve shall monitor pressure on both cold and hot water inlets. On loss of cold water pressure the valve
shall prevent delivery of hot water to avoid scalding. On loss of hot water pressure, the valve shall allow the full ANSI
required flow of cold water to the emergency safety fixture.

G. Water pressure drop across the system must not exceed 5psi at 20 GPM flow, mixing valve must have a Cv rating not

less than 10.0.

H. The system shall be supplied complete with all electrical operating controls. Safety devices and accessories shall include

but not be limited to:

1. Low watt density immersion heating element

2. Adjustable immersion temperature controller

3. Safety high limit switch with manual reset

4. Dial temperature and pressure gauge

5. ASME temperature and pressure relief valve

6. Automatic air vent valve

/4" NPT non-ferrous copper-silicon/brass. Steel tank

In addition, this packaged system shall be supplied with the following optional features:

Option

Option

Option

The water heater manufacturer shall warranty all electrical components against defects in workmanship and material for a
period of one (1) year from date of start-up, and the pressure vessel for a full five (5) years Non Pro-Rated
(

Optional Specication: full ten (10) years Non Pro-Rated ) from date of start-up, provided that the unit is started

within three (3) months of date of shipment and installed and operated within the scope of the tank design and operating
capability. Each water heater shall be shipped with a complete set of installation and operating instructions including spare
parts list and approved drawings.

[Rev C]