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Linear Duct Heaters
PRODUCT DESCRIPTION
The Linear Duct Heaters are an optional heat system that will engage when the normal operating range of reverse cycle heat pumps is exceeded. The line of linear duct heaters is designed by Marine Air Systems to work with those new or existing air conditioning systems that are digitally controlled with the ECU Maxx. This enables the typical boating season to be extended through the fall and spring months, allowing more time for boat owners to enjoy their boat... in total comfort. Live-aboards will find this enhancement to their system to be of particular benefit.

The Linear Duct Heater, when used in conjunction with the ECU Maxx control, provides a wide range of program functions that will allow you to customize the heating system to fit virtually any requirement. The Linear Duct Heaters are available in 1kw or 2kw and either 115 or 230VAC.

The Linear Duct Heater is mounted near the blower and fitted directly in the duct system. The unit is designed to match the diameter of the ducting, so little additional space is required. This heater mounts easily to any secure surface and, because of internal ceramic insulation, does not transfer heat to the shell. Each device is fitted with an automatic reset thermal overload as well as a fuse link for shutdown in case of air flow failure.

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FEATURES ---------------
Design
  • Automatic operation with Maxx provide: backup to reverse cycle heat for cold water, heat when boat is hauled, and electric heat only.
  • Available in 115 and 230 VAC.
  • Custom applications and sizes available.
Installation
  • Compact
  • Low overall weight allows for ease of handling and positioning units.
  • Ducting/grille kits and sea water components are available for complete system installation.
Safety
  • Thermal overload protector with an automatic reset.
  • One-time current fuse link as back-up protection.
  • Internal high temperature - ceramic insualtion keeps the shell temperature low.
  • Additional over-current protection in the ECU Maxx.
  • Fire retardant "KCS" plastic electrical cover.
Quality Assurance
  • Field proven, reliable digital control allows one touch, simple operation that is user friendly and yet programmable.
  • Each unit is test run in all operating modes.
  • Largest worldwide dealer organization for assistance with parts or service.
  • All units meet or exceed applicable ABYC and U.S. Coast Guard regulations, CE Directives and general Air Conditioning and Refrigeration industry (ARI) standards.

SPECIFICATIONS
Model
HTR 5" 1.0K/Z
HTR 6" 1.0K/Z
HTR 7" 1.0K/Z
HTR 5" 2.0K/Z
Capacity
Watts
1,000
1,000
1,000
2,000
BTU/H (Kcal/H)
3414/860
3414/860
3414/860
6828/1720
Electrical Data
Voltage (VAC)
115/230
115/230
115/230
115/230
Cycle/Phase (HZ/o)
50-60/1
50-60/1
50-60/1
50-60/1
Amperage (FLA)
115 VAC
8.7
8.7
8.7
17.4
230 VAC
4.3
4.3
4.3
8.7
Maximum Fuse
115 VAC
10
10
10
20
230 VAC
5
5
5
10
Minimum Circuit Amp
115 VAC
10.9
10.9
10.9
21.8
230 VAC
5
5
5
10
Physical Data
Dimensions (in/cm)
A
14.75/37.5
12.0/30.5
12.0/30.5
12.0/30.5
B
8.75/22.2
8.75/22.2
9.75/24.8
9.75/24.8
C
6.0/15.2
6.0/15.2
7.0/17.8
7.0/17.8
D
5.0/12.7
6.0/15.2
7.0/17.8
7.0/17.8
Weight (lb/kg)
4.0/1.8
4.0/1.8
5.0/2.3
5.0/2.3
*Model designation without "Z" = 115 VAC, with "Z" = 230 VAC
**Reduction rings attached to HTR 5" models only, increasing overall length by 2.75"
Installation Guidelines for Linear Duct Heaters
When choosing the proper Linear Duct Heater model, primary consideration should be given to calculated BTU loads and adequate air flow.

The location of the Linear Duct Heater should be dry and accessible for service. Install the duct heater as close to the unit's blower as possible, using the fasteners provided. The duct heater has no position-sensitive parts and may be installed in horizontal or vertical positions.

Grilles should be sized according to Marine Air Systems design standards, install the return air grilles low and the supply air grilles high. Return air grilles must have removable filters installed.

Ducting should be sized according to unit specifications. Ducting should be connected to the heater assembly using proper fasteners

(self-tapping screws, etc.). Hose clamps are not recommended. All ducting should be installed as smoothly and as straight as possible, avoiding any unnecessary bends or loops. Once the ducting runs are positioned properly, they should be securely fastened to avoid shifting due to motion of the vessel.

Circuit breakers and wire gauge must be sized according to marine design standards. Only stranded tinned copper wire should be used. All equipment should be properly grounded. Each duct heater is equipped with a thermal overload protector and an overcurrent fuse link. Do not bypass these devices to operate the heating element. Replace failed devices prior to re-operation.


In the interest of product improvement, Marine Air Systems' specifications and design as outlined herein are subject to change without prior notice.


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Taylor Made Environmental, Inc.
2000 North Andrews Avenue Extension
Pompano Beach, Florida 33069-1497
 		Tel: 954-973-2477
Fax: 954-979-4414
Service Fax: 954-973-8795
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