Berko HUHAA520 User Manual

HUHAA Series
Modular Unit Heaters
Dear Owner,
Congratulations! Thank you for purchasing this new heater manufactured by a division of Marley
Engineered Products. You have made a wise investment selecting the highest quality product in the heat-
ing industry. Please carefully read and follow the installation and maintenance directions shown in this
manual. You should enjoy years of efficient heating comfort with this product from Marley Engineered
Products... the industry’s leader in design, manufacturing, quality and service.
... The Employees of
Marley Engineered Products
Read Carefully - These instructions are written to help
you prevent difficulties that might arise during installation
of heaters. Studying the instructions first may save you
considerable time and money later. Observe the following
procedures, and cut your mounting time to a minimum.
1. To prevent electrical shock, disconnect all power coming to
heater at main service panel before wiring or servicing.
2. All wiring must be in accordance with the National and Local
Electrical Codes and the heater must be grounded as a pre-
caution against possible electric shock.
3. Verify the power supply voltage coming to heater matches the
ratings printed on the heater nameplate before energizing.
4. This heater is hot when in use. To avoid burns, do not let bare
skin touch hot surfaces.
5. Do not insert or allow foreign objects to enter any ventilation
or exhaust opening as this may cause an electric shock,
fire,or damage to the heater.
6. To prevent a possible fire, do not block air intakes or exhaust
in any manner. Keep combustible materials, such as crates,
drapes, etc., away from heater. Do not install behind door,
furniture, towels, or boxes.
7. A heater has hot and arcing or sparking parts inside. Do not
use it in areas where gasoline, paint or flammable liquids are
stored.
8. 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.
9. This heater is not approved for use in corrosive atmospheres
such as marine, green house or chemical storage areas.
Installation & Maintenance Instructions
FILE #E21609
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Berko HUHAA520 Specifications

General

Phase	Single
Heating Type	Electric
Thermostat	Yes
Overheat Protection	Yes
Remote Control	No
Timer	No
Voltage	220-240V

Summary

Installation & Maintenance Instructions

General Safety Warnings

Crucial safety guidelines to prevent electrical shock, fire, and injury during installation and operation.

Heater Location Instructions

Heater Placement Guidelines

Recommendations for optimal placement to ensure efficient air circulation and comfort.

Room Size and Unit Capacity

Guidance on selecting unit number and capacity based on room volume and floor area.

Heater Mounting General

Mounting Orientation and Clearances

Instructions on heater orientation, access door clearance, and wall/ceiling clearances.

Mounting Methods and Hardware

Details on using threaded rods or optional brackets for suspending the heater.

Wiring Instructions

Branch Circuit Power Connection

Guidelines for connecting the main power supply, including voltage and wire sizing.

Grounding and Wiring Practices

Ensuring proper grounding and using correct wire types for the power terminal board.

Wiring Diagrams and Connections

Guidance on using wiring diagrams and specific connection procedures for single and three-phase power.

Accessory and Voltage Wiring

Information on connecting accessories and adjusting wiring for different voltage supplies.

Control Wiring

Control Wiring Safety Precautions

Critical safety warnings and best practices for control circuit wiring.

Control Terminal Board Connections

Instructions for connecting thermostats and accessories to control terminal boards.

Limited Warranty Information

Warranty Coverage and Limitations

Details on warranty duration, exclusions, and conditions for coverage.

Claim Procedures and Remedies

Steps for making warranty claims and the manufacturer's responsibilities.

Ordering Repair Parts

Information for Ordering Parts

Essential details needed when ordering replacement parts, including part and model numbers.