HUHAA Product Manual

ManualsBrandsBerko ManualsHeatingHUHAA - 5.0 kW - Electric Unit Heater - 208-240V/60Hz/1-3 Phase

HUHAA Series

Modular Unit Heaters

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 installation 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 precaution

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 dam-

age 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, d r a p e s ,

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.

SAVE THESE INSTRUCTIONS

Dear Owner,

Congratulations! Thank you for purchasing this new heater manufactured by Marley Engineered Products.

You have made a wise investment selecting the highest quality product in the heating industry.

Please carefully read the installation and maintenance instructions 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

Installation, Operation & Maintena nce Instruct i ons

WARNING

FILE #E21609

Summary of content (6 pages)

PAGE 1
HUHAA Series Modular Unit Heaters FILE #E21609 Installation, Operation & Maintenance Instructions Dear Owner, Congratulations! Thank you for purchasing this new heater manufactured by Marley Engineered Products. You have made a wise investment selecting the highest quality product in the heating industry. Please carefully read the installation and maintenance instructions shown in this manual. You should enjoy years of efficient heating comfort with this product from Marley Engineered Products...
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MOUNTING THE HEATER, GENERAL The heater may be mounted to discharge the heated air either horizontally or vertically. When the heater is mounted for vertical discharge, it is recommended that the heater be positioned so that the access door will open away from the wall to provide greater access to the wiring and control compartment.
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Horizontal Discharge (Rod-mount from Ceiling) 7. Each heater has a wiring diagram affixed to the inside of the access door. Consult this diagram before making any field connections. 1. Install four threaded mounting rods in the threaded holes and secure in place using lock nuts. (See Table 2). 8. Single or three-phase power connections may be used with heater models HUHAA520, HUHAA524, HUHAA720, HUHAA724, HUHAA1020, HUHAA1024 and HUHAA1520. These units are factory wired for single phase operation.
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LEAD WIRE "A1" HEATER FRONT HEATER FRONT 3 PHASE BLOCK 3 PHASE BLOCK LEAD WIRE "A1" B A ELEMENTS CONTACTOR (OR P2) POWER TERMINAL BLOCK REMOTE FAN REMOTE SUMMER SUMMER FAN SWITCH SWITCH (MRFS-1) (HUHAARFS1) S RED BLACK TO W1 A ELEMENTS CONTACTOR (OR P2) POWER FACTORY-WIRED FOR SINGLE-PHASE RELAY FAN FAN RELAY POWER TERMINAL BLOCK FIELD-WIRED FOR THREE-PHASE POWER FOR (HUHAARFS2 AND HUHAAHRT) (FOR MRFS-2 AMD MHRT) Wiring Connections for Single-Phase and Three Phase Power (HUHAA520, HUHAA5
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Table 4. Specifications Basic Model No. HUHAA320 HUHAA324 HUHAA327 HUHAA348 HUHAA520 HUHAA524 HUHAA527 HUHAA548 HUHAA720 HUHAA724 HUHAA727 HUHAA748 HUHAA1020 HUHAA1024 HUHAA1027 HUHAA1048 HUHAA1520 HUHAA1524 HUHAA1548 HUHAA2020 HUHAA2024 HUHAA2048 HUHAA2524 HUHAA2548 HUHAA3020 HUHAA3024 HUHAA3048 HUHAA4024 HUHAA4048 HUHAA5020 HUHAA5024 HUHAA5048 Height in (mm) Width in. (mm) Depth in. (mm) 16 (406.4) 14 (355.6) 8-1/2 (214.4) 21-3/4 (552.5) 19 (482.6) 8-1/2 (214.4) 21-3/4 (552.5) 19 (482.
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LIMITED WARRANTY All products manufactured by Marley Engineered Products are warranted against defects in workmanship and materials for one year from date of installation, except heating elements which are warranted against defects in workmanship and materials for five years from date of installation.