Mosebach BK17 Operation And Service Manual

BK17 Heater

Read all instructions before using the heater

Contents

1) Components ............................................................................................................................. 3

Total Assembly ......................................................................................................................... 3

2) Specifications ........................................................................................................................... 4

a)

Power Specifications ............................................................................................................ 4

3) Receiving .................................................................................................................................. 4

4) Safety ....................................................................................................................................... 5

a) Power connections ............................................................................................................... 6

b) Control power ....................................................................................................................... 6

c) Air intakes and exhaust ports ............................................................................................... 6

d) Exhaust temperature ............................................................................................................ 7

e) Connecting and disconnecting ............................................................................................. 7

5) Operation .................................................................................................................................. 8

a) Pre-startup ............................................................................................................................ 8

b) Startup and operation ........................................................................................................... 8

c) Shutdown ............................................................................................................................ 10

6) Bug Killing Conditions ............................................................................................................ 10

7) Troubleshooting ...................................................................................................................... 11

8) Replacing Fuses ..................................................................................................................... 12

9) Replacing Resistors................................................................................................................ 12

10) Preventative Maintenance of the Heater ................................................................................ 13

11) FAQ ........................................................................................................................................ 14

12) Treatment Suggestions .......................................................................................................... 17

13) Service Parts .......................................................................................................................... 18

Figure List:

1) Total Assembly of BK17 Heater

2) Plug Panel

3) Powering the Controls

4) Thermostat

5) Thermal Switch and Fuses

6) Replacing Fuses

2

BK17 Heater

Lifting

Handles

120VAC

240VAC

Main Power

Digital

Resistor

Ready

Switch

IMPORTANT INSTRUCTIONS

Panel

Air Intake

1) Components

Hot Air Exhaust

Receptacles

Receptacles

Figure 1b Figure 1a

Figure 1c

Switch

Power Switch

Total Assembly

BK17

Thermostat

Light

3

BK17 Heater

Circuit Number

1 2 3 4

Figure

2 Table

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2) Specifications

Blower 120VAC, single phase, 60Hz powered internally

Control power 120VAC, single phase, 60 Hz

Rating Continuous duty

Power factor 1.0

Load elements The current at each step is subject to a manufacturing tolerance of ±5%.

Electro-statically powder coat, Red: PPG PCT69118

Enclosure

Environmental 120V, 850CFM fan to bring outside air into the heater.

Unit Weight 26 lbs.

Air inlet and outlet are covered by metal screens.

Heat is discharged horizontally.

Dimensions BK17: 17.5” x 22.6” x 12.1”

a) Power Specifications

3) Receiving

WARNING! ELECTRIC SHOCK HAZARD. Electric shock can lead to severe injury

or death. If the heater has been damaged in transit, do not operate
until a competent technician inspects the unit and determines that it
can be operated safely.

1) Check the equipment for obvious damage.

Total

Voltage (VAC) 120 120 240 240

Current (Amps) 14 14 24 32 84

Power (kW) 1.68 1.68 5.76 7.68 17

2) Document and report any exterior damage to the carrier immediately.

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4) Safety

This heater is designed for a variety of loads. Because of this, it is possible that voltages
higher that those applied can be present inside the heater and at external connections of
the heater. Work on the heater’s internal systems should only be attempted by highly
trained technicians and only when power has been disconnected and cannot be
reconnected to the unit.

When using electrical appliances, basic precautions should always be followed to reduce
the risk of fire, electrical shock, and injury to persons, including the following:

1) Read all instructions before using this heater.

2) This heater is hot when in use. To avoid burns, do not let bare skin touch hot
surfaces. Use handles when moving this heater. Keep combustible materials, such
as furniture, pillows, bedding, papers, clothes, and curtains at least 6 feet
(1.8 meters) from the exhaust of the heater and keep them away from the sides and
rear.

BK17 Heater

IMPORTANT INSTRUCTIONS

3) Extreme caution is necessary when any heater is used by or near children or invalids
and whenever the heater is left operating and unattended.

4) Remove all animals and plants from area to be heated

5) Always unplug heater when not in use.

6) Do not operate any heater with a damaged cord or plug or after the heater
malfunctions or has been dropped or damaged in any manner. Discard heater or
return to authorized service facility for examination and/or repair.

7) Do not use outdoors.

8) Do not use in wet or moist locations

9) This heater is not intended for use in wet indoor environments.

10) Do not run cords under carpeting. Do not cover cords with throw rugs, runners, or
similar coverings. Do not route cords under furniture or appliances. Arrange cords
away from traffic areas and where it will not be tripped over.

11) To disconnect heater, turn controls off, then remove plugs from outlets.

12) Do not insert or allow foreign objects to enter any ventilation or exhaust opening as
this may cause an electric shock or fire, or damage the heater.

13) To prevent a possible fire, do not block air intakes or exhaust in any manner. Do not
use on soft surfaces, like a bed, where openings may become blocked.

14) A heater has hot and arcing or sparking parts inside. Do not use it in areas where
gasoline, paint, or flammable liquids are used or stored.

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15) Use this heater only as described in this manual. Any other use not recommended by
the manufacturer may cause fire, electric shock, or injury to persons.

16) Always plug heater directly into a wall outlet/receptacle. Never use with a re-locatable
power tap (outlet/power strip).

17) This heater includes a visual alarm to warn that parts of the heater are getting
excessively hot. If the alarm light goes on, immediately turn the heater off and inspect
for any objects on or adjacent to the heater that may cause high temperatures. DO
NOT OPERATE THE HEATER WITH THE ALARM LIGHT ON.

18) SAVE THESE INSTRUCTIONS

.

a) Power connections

WARNING! ELECTRIC SHOCK HAZARD. All power connections must be

connected or guarded. Failure to do so will expose operators to
possible shock and the possibility of grounding-out or shorting-out of
the test power source.

BK17 Heater

b) Control power

Use 120V type S or type SJ jacketed cord to a wall connection. Cord and service
rated to 15 AMP minimum.

c) Air intakes and exhaust ports

Caution! All air intakes and exhaust ports must be clear and fully open. This

heater has one air intake designed for proper air flow. Reducing or blocking
air flow will lead to overheating and heater failure.

High volumes of cooling air are needed to prevent load elements from overheating. By
their very nature, resistors under load convert electrical energy to heat. This heat must be
removed from the unit. The blower, intake, and exhaust ports are sized to provide the
proper amount of cooling air. Preventing or limiting air flow will allow the heater to
overheat.

To increase the life of the load elements, allow the fans to run at least three minutes after
the load is removed or until exhaust air is cool.

No ductwork is permitted on intake or exhaust of this heater as this will cause a
backpressure and ruin the resistors.

Caution! Material can be moved by intake air or exhaust air. Failure to secure

material could cause injury to bystanders or damage to the heater.

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