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THIS MANUAL IS THE PROPERTY OF THE OWNER.

PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB.

1-550.26

5H70718A

February, 2011

INSTALLATION AND SERVICE MANUAL

steam/hot water unit heaters

Inspection On Arrival

1. Inspect unit upon arrival. In case of damage, report it

immediately to transportation company and your local factory

sales representative.

2. Check rating plate on unit to verify that power supply meets

available electric power at point of installation.

3. Inspect unit received for conformance with description of

product ordered (including specifications where applicable).

General Information

Installation and service instructions in this manual are applicable

to the three types of steam/hot water unit heaters which should

be installed in their proper applications for their most effective

function as overhead heating units.

The copper coils are warranted for operation at steam or

hot water pressures up to 150 lbs. per sq. in. gauge, and

or temperatures up to 375°F, cupronickel tube units are

warranted for operating pressures up to 250 PSI and operating

temperatures up to 400°F. Canadian Standards Association

(CSA) requriements state that explosion-proof units may not

be used with a fluid temperature in excess of 329°F and still

maintain their explosion-proof rating, for national electric code

ignition temperature rating T3B for grain dust.

Motors are designed for continuous duty. They can operate in a

maximum ambient temperature of 104°F (40°C).

The unit heaters are listed by the Canadian Standards

Association as certified and Canadian Registered heat

exchangers CRN OH 9234.5.

Steam horizontal and vertical delivery unit heaters are available

in both standard and low-outlet temperature models. Low outlet

temperature models are recommended primarily for installation

on heating systems with steam pressures of 30 to 150 PSI.

When used at these steam pressures they provide lower outlet

air temperatures for longer heat throw and, because of wider

fin spacing, they are less susceptible to clogging in dusty

atmospheres.

The model number of each unit heater indicates its rated Btu/Hr.

capacity/1000 at 2 lbs. steam pressure and 60°F entering air

temperature. For example an HSB-63 has an output of 63,000

Btu/Hr. at 2 lbs. steam and 60°F entering air.

C

US

®

Model HSB

Horizontal Delivery

Top/Bottom

Inlet/Outlet

Model HC

Horizontal Delivery

Side

Inlet/Outlet

Models V/VN

Vertical Delivery

Model PT/PTN

“Power-throw”

IMPORTANT

The use of this manual is specifically intended

for a qualified installation and service agency.

A qualified installation and service agency must

perform all installation and service of these

appliances.

CAuTION

Do not remove outlet fan guard from vertical

type unit heaters.

Product specificaties