Force 10 Electric Water Heater User manual

E
El le ec ct tr ri ic c W Wa at te er r H He ea at te er r
OWNER’S MANUAL
FORCE 10 MARINE COMPANY
23080 HAMILTON ROAD
RICHMOND, BC CANADA V6V 1C9
TEL: [phone]
FAX: [phone]

Page 1 of 10
ENG-0092.6
INTRODUCTION
Thank you for selecting a Force 10 Marine Electric Water Heater. Your unit was
carefully inspected and tested at our factory. We take pride in producing one of the
finest Water Heaters for marine use. Please take the time to read this manual
carefully; many of its instructions are essential to the safe operation of your unit.
Because of the continuing refinement of our product designs, your Water Heater may
possess features not discussed in the manual. We have tried to supply all the
information you might need, so please take time to read this manual before using your
Water Heater.
Force 10 advises strongly against unauthorized modification of this product, but we
do encourage you to correct problems which may arise.
Please make note of the model and serial number of your Water Heater for future
reference.
Model # ____________ Serial # __________________
Any recommendation or advice by Force 10 Marine Company, or any of its
employees, is given with the understanding that it is solely as an accommodation
to the customer, and should not be relied upon by the customer without an
independent verification of its applicability to the customer’s particular
situation.
IMPORTANT SAFETY INSTRUCTIONS
When using electrical appliances, basic safety precautions to reduce the risk of
fire, electric shock, or injury to persons should be followed, including:
•Read all Instructions before Operating.
•This water heater must be grounded. Connect only to properly grounded circuit.
•Install or locate this water heater only in accordance with the provided installation
instructions.
•Use this water heater only for its intended use as described in this manual.
•Do not use an extension cord set with this water heater.
If your water Heater is Damaged or you have questions regarding
installation, performance or operation please contact Force 10
Marine Customer Service at 1-800-663-8515 or [email protected].

Page 2 of 10
ENG-0092.6
•Do not operate this water heater if it has a damaged power line, if it is not working
properly, or if it has been damaged or dropped.
•This water heater should be serviced only by qualified service personnel. Contact
nearest authorized service facility for examination, repair, or adjustment.
WARNING:
This is an electrical appliance that requires a specific energy source. Each unit is
manufactured to run on either 120 OR 240 volt circuitry. Be sure you have
purchased the correct unit based on your power source.
This heater is equipped with a heat exchanger so that the water may be heated by the
coolant from your engine. This may cause the water temperature to get excessively
hot unless your unit is equipped with a Temperature Control Valve which holds the
temperature at approximately 140 deg F.
Do not operate this water heater if there is damage to the heater or if not performing
properly. Contact Force 10 for assistance.
The tank and heat exchanger are aluminum. Do not use any chemicals in the heat
exchanger that may cause damage to it. Use only the engine manufacturer’s
recommended coolant. Do not use raw water in heat exchanger circuit. Damage
caused by a damaging chemical or salt reaction is not covered under warranty.
CAUTION
Hydrogen gas is produced in a hot water system served by this heater that has not
been used for a long period of time (2 weeks or more). Hydrogen gas is extremely
flammable. To reduce the risk of injury under these conditions, it is recommended
that the hot water faucet be opened for several minutes at the kitchen sink before
using any electrical appliance connected to the hot water system. When hydrogen is
present, there will probably be an unusual sound such as air escaping through the pipe
as the water begins to flow. There should be no smoking or open flame near the faucet
at the time it is open.
NOTE: Small DC electric currents move between boat and shore through the safety
ground wire in the shore cord, causing galvanic damage to your water heater. To
prevent galvanic damage, this product should be used in conjunction with a galvanic
isolator. These devices are inexpensive and easily installed. Galvanic corrosion is not
covered by warranty.

Page 3 of 10
ENG-0092.6
INSTALLATION
CAUTION
To reduce the risk of excessive pressures and temperatures in this water heater,
install temperature and pressure protective equipment required by local codes and no
less than a combination temperature and pressure relief valve certified by a
nationally recognized testing laboratory that maintains periodic inspection of
production of listed equipment or materials, as meeting the requirements for Relief
Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems, ANSI
Z21.22-1986. This valve must be marked with a maximum set pressure not to exceed
the marked maximum working pressure of the water heater. Install the valve into an
opening provided and marked for this purpose in the water heater, and orient it or
provide tubing so that any discharge from the valve exits only within 6 inches above,
or at any distance below, the structural floor, and does not contact any live electrical
part. The discharge opening must not be blocked or reduced in size under any
circumstances.) For your convenience, this device has already been installed on you
unit.
MOUNTING
1. If you are using the heat exchange feature, locate the water heater as close to the
engine as possible. The heat exchanger port (or TCV inlet if equipped) must be
lower that the coolant output port of the engine.
2. Your unit is equipped with mounting brackets located either on the sides of the
tank or the front and back of the tank. Use stainless steel screws to securely fasten
the heater.
PLUMBING
1. Connect cold water supply and hot water outlet to the heater as indicated on the
front of the tank. (The tank is supplied with 1/2” NPT Female fitting) Force 10
recommends the installation of a check valve on the cold water inlet. Seal all pipe
fittings with Teflon tape or Loctite thread sealant.
Thermal Expansion: When a Water Heater is installed in a closed water-
supply system, such as one having a back flow preventer in the cold water
supply, means shall be provided to control thermal expansion.
2. The heat exchanger inlet or TVC inlet (if equipped) and the outlet is a 5/8” hose
barb fitting. Connect hoses to the hose barb fitting using stainless steel hose
clamps.
3. If your unit is equipped with a TCV (Temperature Compensation Valve) the
coolant loop to the water heater exchanger must be an auxiliary loop in the engine
coolant circulation system. The TCV can not be installed inline with the engine
coolant system. Figure 1 on page 5

Page 4 of 10
ENG-0092.6
PLUMBING CONNECTIONS
2
5
3
4
1
6
2
6
5
4
7
1
8
3
1. Cold Water In
2. Drain Valve
3. Heat Exchanger Inlet
4. Heat Exchanger
Return
5. SRV
6. Hot Water Out
1. Cold Water In
2. Drain Valve
3. Heat Exchanger Inlet
4. Heat Exchanger
Return
5. SRV
6. Hot Water out
7. TCV
8. TCV Adjustment Nut
Model with TCV)
Standard model without (TCV)

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ENG-0092.6
HEAT EXCHANGER INSTALLATION DIAGRAM
(Figure1)
4. A Temperature / Pressure relief valve (SRV) is factory installed. A drain hose
should be installed to comply with ABYC standards. (Section H-23 (23.7.4.2) in
the Installation of Potable Water Systems chapter.) Due to thermal expansion the
SRV may weep slightly. This is normal operation.
ELECTRICAL
1. Remove the AC wiring access cover by unscrewing the screw at the top of the
cover. The bottom is held in by a tab. The tab should be between the front case
and the insulation.
2. Connect the electrical supply by a qualified electrician. The electrical supply shall
be armored cable or conduit per NEC code ANSI/NFPA 70-1993. See figure 2 on
page 7 for Wiring Diagrams.
Note: Wiring diagram is located on the inside of the removable access
panel.

Page 6 of 10
ENG-0092.6
3. Connect Line (Hot) to the pigtail wire coming from the High Temperature
Limiter. Connect the Neutral to the unused screw terminal on the heating element
marked with a white “N”.
4. A strain relief should be installed in the hole on the front of the access panel to
secure the AC wire.
5. Ground the water heater using the ground connection screw on the inside of the
access cover. Do not use a switch in the grounding circuit.
ELECTRICAL CONNECTIONS
CONTROL
ACCESS
COVE
R
THERMOSTAT
-120V / 240V 1500W
(PN# 15214)
(SHOWN WITH OUT INSULATING COVER)
LINE IN
(HOT)
GROUND
CONNECTION
STUD
GROUND
WIRE
HI TEMP LIMITER
-120V 1500W (PN# 14456)
- 240V 1500W (PN# 14457)
POWER
NUETRAL
HEATER ELEMENT
6, 11, 20 Gallon
-120VAC 1500W
(PN# 14121)
-240VAC 1500W
(PN# 14122)
5 Gallon
-120VAC 1500W
(PN# 141215)
-240VAC 1500W
(PN# 141225)

Page 7 of 10
ENG-0092.6
WIRING DIAGRAMS
(Figure 2)
DO NOT CONNECT LINE (HOT) DIRECTLY TO THE ELEMENT
OPERATION
ELECTRIC
When the Water Heater is operating from the AC Power, water temperature in the
tank is regulated at 140 deg F (60 deg C). The thermostat is non-adjustable.
HEAT EXCHANGER
When the Water Heater is operating from the Heat Exchanger, water temperature in
the tank will approach the temperature of the engine coolant. If the Heater is equipped
with a Temperature Control Valve (TCV) the water temperature in the tank will be
regulated at approximately 140 deg F (60 deg C).
The Temperature Control Valve (TCV) regulates the flow of coolant through the Heat
Exchanger by sensing the output temperature of the water in the tank. As the output
water temperature rises, the thermal actuator closes the valve and restricts the coolant
flow through the Heat Exchanger limiting the water temperature to approximately 140
deg F (60 deg F) . When the output water temperature cools the valve opens and
allows engine coolant to flow through the heat exchanger.

Page 8 of 10
ENG-0092.6
START-UP
1. Completely fill the tank and entire water system. Flush water through the tank to
eliminate any trapped air.
2. Check all connections for leaks.
3. Apply power to the Water Heater and check to ensure the water is hot. The water
will meet maximum temperature within (2) hour.
Caution: Do not operate water heater without the heating element submerged in
water.
MAINTENANCE
1. Disconnect AC Power prior to draining the water system.
2. Flush Tank periodically.
3. If the temperature in the tank environment is going to drop below 32 deg F (0 C),
drain the tank to prevent freezing and possible damage.
TROUBLE SHOOTING GUIDE
PROBLEM CAUSE SOLUTION
No output from the tank Air Lock in the system Bleed all the water lines
Water does not get hot when
plugged into AC Power
High Limiter switch has tripped Cycle AC Power
Failed Thermostat Replace Thermostat
Element has burned out Replace Element
Water Dripping from SRV
Thermal Expansion Install Expansion tank
Valve poppet not seated properly Lift leaver to flush valve and
reseat.
Leaking from TCV Connection Loose Connection Tighten the collar hex nut on the
TCV.
Bad seal Replace “O” Ring
Leak from TCV vent hole Failed temperature sensor seal
Replace TCV
Leaking shaft seal Replace TCV

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ENG-0092.6
SPECIFICATIONS
405XXX 406XXX 411XXX 418XXX
Capacity 5 Gallon 6 Gallon 11 Gallon 20 Gallon
Tank Material Aluminum Aluminum Aluminum Aluminum
Case Material Stainless Steel Stainless Steel Stainless Steel Stainless Steel
Weight (Dry) 22 lb 25 lb 30 lb 47 lb
Overall Size including
mounting plate (W/D/H)
Front /Back Mount
N/A 13.6" / 20" / 13.6" 16" / 22.5" / 16" N/A
Front /Back Mount w/ TCV
N/A 13.6" / 20.5" / 13.6" 16" / 23" / 16" N/A
Side Mount 15.5" / 16.5" / 13.6" 15.5" / 19.5" / 13.6" 18.75" / 21.5" / 16" N/A
Side Mount w/ TCV
15.5" / 16.75" / 13.6" 15.5" / 20" / 13.6" 18.75" / 22" / 16" N/A
Cross Mount
N/A N/A N/A 18.75" / 18.75" / 29.5"
Standard Heat
Exchanger Location Front Front Front Front
Electrical Rating
120 V
1500 Watts / 12.5A 1500 Watts / 12.5A 1500 Watts / 12.5A 1500 Watts / 12.5A
240 V
1500 Watts / 6.25A 1500 Watts / 6.25A 1500 Watts / 6.25A 1500 Watts / 6.25A
Ignition Protection Yes Yes Yes Yes
Certification
120 V UL 174 (Including Marine
Supplement) CSA C22.2
No. 110-94
UL 174 (Including Marine
Supplement) CSA C22.2
No. 110-94
UL 174 (Including Marine
Supplement) CSA C22.2
No. 110-94
UL 174 (Including Marine
Supplement) CSA C22.2 No.
110-94
240 V
CE CE CE CE
Fittings
Water Inlet 1/2" NPT F 1/2" NPT F 1/2" NPT F 1/2" NPT F
Water Outlet
1/2" NPT F 1/2" NPT F 1/2" NPT F 1/2" NPT F
Heat Exchanger
5/8" Hose Barb 5/8" Hose Barb 5/8" Hose Barb 5/8" Hose Barb
SRV
3/4" NPT F 3/4" NPT F 3/4" NPT F 3/4" NPT F
Warranty 2 Years 2 Years 2 Years 2 Years
Specifications sugject to change without notice

Page 10 of 10
ENG-0092.6
Limited Warranty
Force 10 Marine Company warranties the Hot Water tank to the original consumer to
be free from defective material(s) and workmanship while under normal use and
service for a period of (2) year.
During the warranty period, Force 10 Marine Company will, at its option and without
charge, repair and/or replace but not remove or re-install the faulty product.
The purchaser will return defective products to the address stated below. No product
will be accepted by Force 10 Marine Company without a Return Authorization
Number. Return of defective products must be accompanied by written details of the
problems and proof of purchase.
The buyer shall be responsible for shipping and insurance charges, if any, on the
products returned for repair under the terms of this warranty. Force 10 Marine
Company will pay shipping of products returned to the buyer.
This limited warranty applies only to products that have been installed and used in
accordance to printed instructions of Force 10 Marine Company and does not cover
improper use, vandalism, negligence or accidents.
FORCE 10 MARINE COMPANY
23080 HAMILTON ROAD
RICHMOND, BC
CANADA V6V 1C9
TEL: [phone]
FAX: [phone]
WEB: www.force10.com

WARRANTY REGISTRATION
Name:
Address:
City:
State/Province:
Country:
Zip / Postal Code:
Telephone:
Email address:
MODEL # Purchase Date:
SERIAL #
Manufacture of Boat:
Model of Boat:
Purchased from (Dealer Name):
Signature: Date:
Mail to: Force 10 Marine Company
23080 Hamilton Rd.
Richmond, BC Canada
V6V 1C9
Fax to: [phone]