Uni-pak GH Series Instruction manual

Uni-Pak

LOW

PROFILEHEATERS

Certified

for

Natural

& LP

Gases

Installation,

Operation,

Maintenance

Manual

GH

& DGH

Series

WARNING

If

the

information

in

theseinstructions

arenot

followed

exactly

a

fire

or

explosion

may

result,causing

property

damage,personal

injury

or

death.

Code

compliance

isthe

soleresponsibility

of

the

installer.

IfYou

Smell

Gas!

Do

nottryto

light

any

appliance.

Do

not

touch

any

electricalswitch.

Do

notuseany

phone

in

your

building.

Immediately

call

your

gas

supplier

from

a

neighbor's

phone.

If

you

cannotreach

your

gas

supplier

call

the

firedepartment.

ETL

LISTED

,„.

CONFORMS

TO

lntertet

ANSISTDZ83.8

4004374CERTIFIED

TO

CSASTD2.6

CAUTION

Do

not

storegasolineflammable

liquids

or

vapors

inthe

vicinity

of

this

orany

otherfuel

burningappliance.

Installation

and

servicemust

be

performed

bya

qualified

installer,serviceagency

orthegas

supplier

Installer

Affix

thismanualadjacent

tothe

heater!

Inform

and

demonstrate

the

correct

operation

and

maintenance

ofthe

heater.

Check

polarity

of

electrical

outlet

if

heaterdoes

not

stay

tit!

UNPACKING AND INSPECTION

1.

Examine

unit

as

received for

any

damages.

If

any

damage

is

found,

proper notation

should

be

made

on

the

carTier's

freight bill. Claims

should

be

made at

once.

2.

If

any

parts

are

missing, claims of

shortage

should

made

to

the

manu-

facturer within five

(5)

days.

3.

Check

rating

plate for correct type ofgas

and

input.

4.

Verify that

the

electrical

rating

shown

on

the rating plate will meet available power

supply

at

the

point of installation.

GENERAL

When consulting

codes

orstandards

referenced

in

this

manual,

consult

the

most

recent edition ofthe

code

or standard.

Installation shall conform with local codes

or,

in

the

absence

of local codes, with

the

National

Fuel

Gas

Code,

ANSI

Z223.1

or

the CAN/CGA 8149 Installation

Codes

(latest editions).

This appliance is a gas-fired power vented

unit heaterwith propeller-type

fan,

designed

for

suspended

mounting

in

commercial,

industrial

and

residential buildings.

The

unit

heater

is

completely assembled

and

wired.

Only

the

usual

mounting

brackets,

gas,

electric

and

flue connections'

are

needed

to

.

pU!

h~~t~ril1t<?

9P~~ation~

_lJ!~

~l'1it

h~~ter

.is

certified

by

the

Canadian

Standard

Association

in

accordance with

the

American National Standard/Canadian

Gas

Association

Standard

for

Gas

Unit Heaters

and

Gas-Fired

Duct

Furnaces,

ANSI

Z83.8/CGA

2_6

cmd

Z83.8a1CGA

2.6a for

use

with natural or

LP

gases

and

lAS

U.

S.,

Requirement

No.

10-96 for Unit Heaters For

Residential

Use.

WARNINGS

Should

over

heating

occur,

or

the

gas

supply fail

to

shutoff,

shutoff

the

manual

gas

valve to

the

appliance before

shutting

off

trte

electrical

supply.

When replacing

an

eXisting

heater, it

may

be

necessa'ry

to

re-size

the

venting

system.

improperly

sized

venting

system

can

result

in

vent

gas

leakage or conden-

sation

formation.

Refer to the National

Fuel

Gas

Code

ANSI

Z223.1

or

CAN/CGA 8 149.1 or .2 latest edition.

Failure to follow

these

instructions

may

result

in

serious

injUry

or

death

..

This unit heater

comes

equipped

with a

power

exhaust

system.

Failure

to

follow

these instructions may result

in

possible

serious

injUry

or

even

death.

PRECAUTIONS

1.

Do

read

these

instructions for

safe,

efficient

and

trouble-free operation.

2.

Do

disconnect'electrical power supply

before

making

any

wiring connections.

Unit

must

be

wired per

the

wiring

diagram

furnished

with this

heater.

3.

Do

tum off

all

gas

before installing unit

heater(s).

4.

Do

make

sure

that gas pressure never

exceeds

14"

w.C.

(3.5

kPa).

5.

Do

check

ga~

i!1l~tsl,lp..P!y_pressure

immediately upstream of combination

control. The inlet supply pressure

should

measure

6-7"

w.c.

(1.5-1.7kPa) for

natural

gas

or 12-14"

w.c.

(3-3.5kPa)

on

LP

gases.

6.

Do

vent

unit(s) to

the

outside.

1

7.

Do

maintain

a

rear

c~earanc.e

of

18"

(45.7cm)

or

6"

(15.2cm)

beyond

motor

at

rear of

unit

orwhichever is greater

and

access

side provide ample airfor

combustion

and

fan

operation.

8.

Do

maintain

minimum

clearances

frqm

combustible material

based

on

a 160°F

(70°C) swface temperature.

9.

Do

consult

piping, electrical

and

venting

sections

in

this

manual

before

finalizing

installation.

10.

Do

keep

all literature

with

this

unit

heater.

11.

Do

not

install

in

potentially explosive or

flammable

atmosphere

laden

with grain

dust,

sawdust,

or

other air-borne

materials. Ifthis installation application

is

used,

install heater

in

a

separate

room

with dueling

making

sure

that a

back

flow

prevention

dampers

are

used

in

the

dust-laden

room.

12.

Do

not

install heaters

where

there

is

high

humidity orsalt water

atmospheres.

This will

cause

corrosion resulting

in

reduction

ofthe

normal

life of

heater.

13.

Do

not

locate

in

areas

where

there

is a

high

concentration of chlorinated, halo-

genated

or acid

vapors

in

the

atmos-

phere,

thiswill

reduce

heat

exchangers

life.

14.

Do

not

install

in

tightly

sealed

rooms

or

small

compartments

(confined

spaces)

- -

without-

provisiens

-for

aaequate-oom--

bustion

air

and

venting.

15.

DO

not

install heater

out~oors.

16.

Do

not

install heater closer to

any

combustible materialsthan

what

the

heater

was

tested

and

listed.

17.

Do

not

block

air

intake

and

discharge of

the unit

heater.

18.

Do

not

attach

duct

work,

air filters or

plastic

vent

pipe

t01his

unit

heater.

19.

Do

not

install

below

7'(2.1m)

measured

from

bottom

of heaterto the floor

in

commercial

applications

and

5'

(1.5m)

for

residential

applications.

20.

Do

not

use

this appliance ifit

has

been

under

water.

Immediately call a

qualified

service

technician to inspect

the

appliance

and

replace

any

damage

equipment

that

has

been

underwater.

LOCATION

In

locating

units,

consideration

should

be

given

to

the

space

heating

requirements,

availability of

gas

and

prOXimity

to

vent

location.

The

direction of

the

air stream

should

be

pointed

toward

the

area

of

greatest

heat

loss.

Multiple units should

be

located

so

that

the

air streams

set

up

a

circulatory

movement

within

the

area

being

heated.

Adjustable

louvers

are

factory

installed

on

front

of

the

heater.

Do

not

install

unit

heater(s)

in

a confined

space

without

providing

wall openings to

and

from

this

space.

Mounting

height

at

which

heaters

are

to

be

installed

is

critical.

The

critical

height

is

from

floorto

the

bottom of

the

unit(s)

where

heaterwill

not

deliverthe

required

amount

of

heated

airto the floor.

Unitheaters installed in Aircraft

Hangers, Parking Structures and Repair

Garages

as

applicable, must

be

installed

in accordance with the Standard on

Aircraft Hangers, ANSIINFPA 409,

the

-StandarcHor-Parking-Structures. -

ANSI/NFPA

88A

and the Standard

for

Repair Garages,ANSI/NFPA SSB, and

with the

CAN1-B149

codes

-latest

editions.

WARNING:

Gas-fired appliances

are

not

designed

for

use

in

hazardous

atmospheres

containing

chlorinated or

halogenated

hydrocarbons.

2

SUSPENSION

Unit(s)

must

be

supported

from

the

structural

part

ofthe building.

Do

not

support

from

ceiling boards, roof panels or

plaster ceiiing.

Each

unit

is provided with two

(2)

angle

brackets for mounting

purposes.

See

figure

1for atypical suspension ofthe heater.

The heater

must

be

installed

in

a level

horizontal position

so

that

the

heater will

operate

property.

See

Figures 1

and

1A

on

page

4.

Mounting

brackets must be installed first

before lifting heater. Decide ifthe unit

is

to

be

installed

as

received; that

is

with

the

controls

on

the left side

when

looking

at

the

front of

the

appliance.

Remove

and

retain the (3)

screws

along

the

top

edge

of both the front

and

back

ofunit.

Make

sure

the

screws line

up

on

the

mounting brackets with

the

holes

along

the

front

and

back

top edges. Secure

(1)

mounting

bracket to front of

the

appliance

with

the

retained screw.

Secure

the

other

mounting

bracket to the

back

side

in

the

same

way

that

the

front

one

was

done.

To

suspend

the

heater,

fasten

the

mounting

brackets to the ceiling joist ortruss,

using

1/4"

(.6cm) screws with

1/2"

(1.3em)

washers.

The

mounting brackets

are

slotted

to accommodate joists

on

16"

-

24"

(4.9-

7.3m)

centers.

This heater may also

be

hung

using

same

mounting

brackets along with threaded

rods.

Attach threaded

rod

to the heater mounting

brackets, fastening with atop

and

bottom

nut.

Next,

drill holes into a steel

channel

or angle

iron

at

the

same

centerline dimensions

chosen

for

the

heater

being

installed.

The

steel channels or angle

iron

pieces

must

span

and

then

be

fastened to

the

appropriate structural

members.

Cut

the

rods

to

the

desired

length,

push

through

holes that

were

made

before

and

secure

with

washers

and

lock

nuts,

lock

washers

and

nuts,

ora

double

nut

arrangement

similarity

used

on

the

unit heater

mounting

brackets.

This heater

also

can

be

installed

on

a

shelf.

The

mounting

brackets

need

to

be

attached

as

previously indicated.

However,

for shelf

mounting

the

brackets

will

have

to

be

secured

to

the

bottom

of

the

unit.

The

brackets

are

then

attach

using

similar

screws (1/4"

(.6em)

screws with 1/2" (1.3cm)

washers)

as

overhead

joist ortruss

mounting.

Be

sure

all clearances to

combustible materials

are

met.

These

unit

heaters

may

also

be turned 1800

around

from

the

way

they

were

produced at

the

factory. Follow these steps forright side

''turned

over"

installation

(See

figure 1B

on

page

4):

1.

Sides

become

opposite butthe front

and

back

remain

in

the

same

relative

position.

Bottom-panel

now

becomes

the

top

and

vise-versa.

2.

Remove

access

panel

and

rotate

180

0,

reattach

it

to

the

unit.

This

make

sure

that all labels

may

be

read.

3.

Remove

the

louvers

and

springs.

Tum

them

over

so

that

the

air is deflected

opposite to

what

it was originally.

Replace

louvers

and

springs.

Adjust

so

that they

are

open

and

positioned to

direct

heated

airto the floor.

COMBUSTION AIR

Adequate

provisions of combustion air

must

be

provided

for this unit

heater.

Since

todays

buildings

and

homes

are more

tightly

build

so

that less air infiltrates from

the

outside, it is

very

important that all

heating

eqUipment

have

adequate

combustion

air.

3

Figure 1

Unit Heater Rear View

Mounting Brackets

Fingerproof Fanguard Fan Motor

Access Panel with

Lighting IOperating

Gas Pipe Hole

Figure 1A Instructions

[Gas Pipe Field Supplied)

Unit heater In Standard

Mounting Configuration

(from factory this orlentation-brackests not attached)

Vent Pipe Connection

FIgure

18

.Unlt Heater Turned 1800

(~c_c~s~

~~n~1

~~d_

Hei!ted

_Air

O~tl~tC_h!lng~

Sides)

4

The

requirements

for

c.Qmbustion

and

ventilation air

depends

on

how

unit

will

be

installed.

That

is either

in

confined

or

unconfined

spaces.

In

both

cases

enough

incoming

air is

required

to eliminate negative

pressure.

Confined

or

Unconfined Space

The

National

Fuel

Gas

Code

defines

an

"unconfined

space"

as

a

space

whose

volume

is

greater

than

50

cubic feet per

1000 BtulHr

input

of

the

installed

appliance(s}. A confined

space

is 50 cubic

feet

or

less

per 1000 BtulHr

input

of

the

installed appliance(

s).

These

unit

heaters

are

not

recommended

for

installation

in

residential

confined

spaces.

This is

due

to

the

fact

at

some

point

in

time

these

air

openings

may

become

blocked

or

eliminated

by

the

owner.

Ifthey

are

to be

installed

in

residential

confined

spaces,

then

the

owner

must

strictly

adhere

to the

guidelines detailed

in

the National

fuel

Gas

code

ANSI

2223.1 orCAN/CGA

8149

Installation

c.orle,

latest edition.

These

unit

heaters

may

be installed

in

confined

spaces

for commercial! industrial

installation

as

long

as

these are

two

permanent

openings located

one

at

the

top

and

one

at

the

bottom.

EacH

opening

shall

have

a

free

area

not

less

than

one

square

inch

(6.4cm2)

per

1,000 BtulHr oftotal

input

rating

of all units

in

the confined space

and

communicating

with interior

areas

having

adequate

infiltration

from

the outside.

-WARNrNG:-ComoustTonaif

opening-s-rnust

be

kept

free of obstructions.

Any

obstructions will

cause

improper burner

operation

and

may

result

in

afire

hazard

or

carbon

monoxide

injUry.

VENTING

Venting

installations

shall

be

in

accordance

with

Part

7,

Venting

of

Equipment,

of

the

National fuel

Gas

Code,

ANSI

Z223.1

and

applicable provisions of

CAN/CGA

8149

Installation

Codes

(latest editions),

and

any

applicable

proVisions

of

local

building

c.odes.

This unit heater series

is

equipped

with

power

exhaust

system.

Do

not

use

any

additional

power

exhaust

systems

or

vent

dampers.

If

any

are

used

orfailure to follow

the

instructions

provided

may

result

in

serious

injUry

or

death.

A.) Use the

following

steps

to

ensure

venting

system

is

adequately sized:

1.

Make

sure

that

all

unused

openings

have

been

sealed.

2.

The

venting

system

must

be

inspected

for proper

size

and

required

horizontal

pitch.

Verify

there

is

no

blockage

or

restrictions

leakage,

corrosion

orother

deficiencies

that

may

lead

to

unsafe

conditions.

3.

Close all building

doors,

windows,

doors

leading

between

the

space

in

which

appliance(s)

are

located

and

other

spaces

of

the

building.

Also

tum

on

all

exhaust

fans

sothaUhe¥

aH-operate

at

there

maximum

speeds.

However,

do

not

run

summer

exhaust

fans

and

make

sure

all fireplace

dampers

are

closed.

4. Start

up

unit

heater(s)

per

the

lighting in-

structions

provided

and

adjust

thermostat

so

that appliance will

operate

con-

tinuously.

5. With

the

unit

in

operation,

check

all draft

hood

equipped

appliances after 5

minutes for

any

spillage

by

using

either a

'burning

malCff6rcandle. -

,-

- -

6.

Once

each

appliance,

which

has

been

connected

to

the

venting

system,

properly

vents

when

tested

from

the

method

outlined

above,

all

doors,

windows,

exhaust

fans,

fireplace

dampers

and

other

gas-burning

appliances

may

be

returned

to their

earlier conditions of

use.

5

7.

Ifimproperventing

'is

observed

during

any of

the

above tests,

the

venting

system

must

be

corrected.

8.

Should

the

venting

system

need to be

revised, it

must

confoon

with

the National

Fuel

Gas

Code

ANSI

Z223.1

or

CAN/

CGA B149lnstallation Codes-latest

edition.

Should

the

venting~ystem

need

revising, it

must

approach minimum

sizing

as

determined

by

the appropriate

table

in

Appendix

"G"

ofthe Nationar

Fuel

Gas

Code

ANSI

Z223.1.

TABLE 1

ANSI UNITHEATER VENTING CRITERIA

category

Desct1pC1on

Yentlng CrflerIa

I Negative vent pr8llSlft

Non-e:Olldellsirlg

Folow

slandani

venting

criteria

II

Negative

ventpresaJl'e

Condensing Condensate

must

bedrained

III

Positive

ventpressure

Non-c:ondensing

Vent

must

be gas

tight

IV

Positive

ventpressure

Condensing

--.'

Vent must

be

Ilquid

and gas

tight.

Condensate

must

be

drained

-

Note: A

vent

Ia

ttle

vet1lcaI

passageway to

convey

flue

gil$8S

from

to ttle

0U1SicIe

atmosphere.

Avent

connedDr

pipe

connects

the

units

ouUet

to a

vent

or

chimney.

\lent

connectors

serving a

category

I

~

shaD

notbe

connected

Into

any

portion

of

mechanical

draft

systems

operating

under

positive pressure.

All verticallY vented unit heaters are

category Iventing

and

all horizontally

yented

unit heaters

are

category

III

venting.

Use

Table I

in

determiningthe category

reqUirements.

category

III

vent. The minimum vent

length forthis system is 4' (1.2m)

and the maximum length is 8'

(204m).

A Gary steel #1092

or

Breident

Adams A1092, Type L vent caps

may

be

used.

b.) All commercial and industrial

hcri1OntaUyfvern~d-heaters

-may

use

eithercertified category III venting

system or single wall galvanized

or

stainless steel vent. Should un-

recognized single wall be used, all

joints must be sealed with metallic

tape ora silicone suitable

for

temp-

eratures above 400°F (202°C).

Tape must be wrapped at least 2

times around the vent pipe. insulate

single wall vent pipe exposed

to

cold

air

or

running through unvented

__

.~~a_s,--

~~

(7-"62C!J11I,(tWl~[>s}!1~

_

be used

in

this application.

2.) Residential: Minimum vent lenth is 4'

(1.2m) and maximum vent length

is

8'

(2.4m)

of

4" (10.2cm) vent pipe. A 3"

(7.6cm) to.

4'~{

1O.2cm) bell-increaserwill

be required and 4" (10.2crn) vent cap.

Commerica.lllndusmal: Minimum vent

length is 5' (1.5m) and the maximum

vent length is 30' (9.1m). Each 3"

(7.6cm) elbow is approximately equal to

1foot (.34m).

8

3.) Vehling system

Shall

terminate a

minimum of3' (.9m) above any forced

system located within 10' (3.1m) and a

minimum of4' (1.2m) below, 4' (1.2m)

horizontally from, or

l'

(.34m) above

any door, window, electric org~ meters,

regulators orgravity airinlet into any

building. The bottom ofthe vent terminal

shaD

beiocated a minimum

of-1'

(.34m)

above grade orabove the snowline or

whichever is

the

greater. The venting

system shall terminate

not

Jess

than 7'

(2.1m) above grade adjacent to public

walkways.

4.) Horizontal vents shall terminate with a

listed "L" type vent

cap.

This cap shall

maintain a 12" (.3cm) clearance from

side ofwall.

See

figures

4,5

and

6.

5.)

If

condensation should occur, the venting

system shall not terminate over public

walkways oroverareas where

c0n-

densation orvapor will become a

nuisance orhazard ordetrimental to

operation ofregulators, reliefopenings or

otherequipment.

6.) This vent system must not

be

used

for

the

purpose

of

venting other units.

7.) Always maintain a 1/4" (.6cm) perfoot

(2.54an) rise

8Niay

from

~.

unit.

Include a drain tee

and

cleclnout

nearthe

vent connection.

See

figures 4

and

5.

Where local authorities

have

jurisdiction,

a 1/4" (.6cm) perfoot (2.54cm) slope

away

from

the

heater is acceptable.

Figure 6 allows for condensation to drain

~

out

the

end

by

the

venf

cali

---- -----

8.) Support the venting (flue) system

by

screwing three (3)

sheet

metal

screws

into

each

pipe connection and then

supporting at-rnaxinum intervals of4'

(1.2m) to prevent sagging (in

Canada,

support every 3'

(1.Om)

minimum

intervals).

9.) Figure 4 shows

how

to vent piping

through a combustible wall

with

either a

thimble ortype

B-O

vent.

Check

with

local authorities having jUrisdiction forthe

proper

procedure.

CLEARANCES

Unit heatersforcommercial

and

industrial in-

stallation shall

have

a minimum clearance

of

7'

(2.1

m)

from

bottom

ofthe heaterto floor

and

residential installation a minimum .

clearance of

5'

(1.5m)

from

the bottom ofthe

heaterto

floor.

Clearances to combustible material, which is

based

on

a 160"F (70.4°C),

must

be

held

as follows:

Top

&

Bottom:

1"

(2.54cm)

Vent

connector:

4"

(10.2cm)

Access side: 18" (45.7cm)

Non-access side: 1" (2.54cm)

Rear:

18" (45.7an)

Make sure that the airintake

and

discharge

airopenings

are

not obstructed.

Accessibility clearances must take

precedence overfire protection clearances.

Allow a

minimum

of

18" (45.7cm) clearance

at the rear or

6"

(15.2cm)

beyond

end

of

motor of

heater.

Make

sure access side is

prOVided

with ample airfor

both

combustion

and

proper

fan

operation.

GAS

CONNECTION

WARNING:

NEVER

USE

AN

OPEN

FLAME

TO

CHECK

FOR

GAS

LEAKS.

-

1F

THERE

1S

A-GAS

tEAK,

EXPLOSTON-

-

OR

INJURY

CAN

RESULT.

ALWAYS

CHECK

FOR

LEAKS

USING

A

SOAP

SOLUTION.

9

Uni-pak GH Series Instruction manual

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