Harman Stove Company Harman Clarity 828i, Installation And Operating Manual

9

ASSEmblY

Gas Pressure Requirements

Correct gas pressure and the use of a properly 

sized gas supply line are essential  for the safe and 

efficient performance of this appliance. Make sure 

that the plumber or gas supplier checks the gas sup-

ply line and gas pressure at installation.

 NOTE: Improper gas pressure can affect heater 

performance, flame color, or cause pilot outage.

DO NOT USE THIS HEATER IF ANY PART 

HAS BEEN UNDER WATER OR EXPOSED TO 

MOISTURE CORROSION. IMMEDIATELY 

CALL A QUALlFlED SERVICE TECHNICIAN 

TO INSPECT THE HEATER AND REPLACE 

ANY PART OF THE CONTROL SYSTEM AND 

ANY GAS CONTROL WHICH HAS BEEN UN

-

DER WATER.

Connecting the Cord Set

The Clarity Fireplace Insert, when installed, must 

be electrically grounded in accordance with local 

codes or, in the absence of local codes, with the 

the current edition of the National Electrical Code, 

ANSI/NFPA 70 in the United States or the current 

Canadian Electrical Code CSA .1 in Canada.

This appliance is equipped with a three-prong 

(grounding) plug for protection against shock haz-

ard and should be plugged directly into a properly 

grounded three-prong receptacle. Do not cut or 

remove the grounding prong from the plug.

NOTE: The convection fan requires a 120 VAC 

supply for operation, but the heater can be op

-

erated without the fan as in the case of a power 

outage.

Plug the 3-prong grounded electrical cord plug into 

the wall outlet.

Natural Gas: 

Maximum inlet pressure    7.0" w.c. (1.74 kPa)   

Minimum inlet pressure     5.0" w.c. (1.5 kPa)  

Gas manifold pressure       3.5" w.c. (0.87 kPa)

LPG Gas: 

Maximum inlet pressure     13" w.c. (3.4 kPa)   

Minimum inlet pressure      11" w.c. (.74 kPa)  

Gas manifold pressure        10" w.c. (.49 kPa)

Connecting the Optional Thermostat 

If the optional thermostat is used, it must be 

plugged into the terminal strip located behind the 

right side of the air inlet grill. It can be accessed by 

sliding  open the control access drawer.

When installing a millivolt control system, use 

only a special low resistance thermostat. Do not use 

a regular heating thermostat.

Be sure that all electrical connections are clean, 

free from corrosion, and tight. Inspect connections 

periodically to confirm that no corrosion has oc-

curred over time.

When properly installed and maintained, a mil-

livolt control system should give many years of 

trouble-free service.

It is important to use wire of a gauge proper for the 

length of the wire:

RECOMMENDED WIRE GAUGES

Maximum Length

100'

60'

40'

5'

15'

Wire Gauge

14

16

18

0

Pipe Length 

Schedule 40 Pipe 

Tubing, Type L

(Feet) 

Inside Diameter 

Outside Diameter

RECOMMENDED GAS PIPE DIAMETER

NOTE: NEVER USE PLASTIC PIPE. CHECK TO CONFIRM 

WHETHER YOUR LOCAL CODES ALLOW COPPER TUBING 

OR GALVANIZED PIPE.

N.G. 

L.P. 

N.G. 

L.P.

0-10 

1/" 

3/8" 

1/" 

3/8"

1.3 cm 

1.0 cm 

1.3 cm 

1.0 cm

10-40 

1/" 

1/" 

5/8" 

1/"

1.3 cm 

1.3 cm 

1.6 cm 

1.3 cm

40-100 

1/" 

1/" 

3/4" 

1/"

1.3 cm 

1.3 cm 

1.6 cm 

1.3 cm

100-150 

3/4" 

1/" 

7/8" 

3/4"

.0 cm 

1.3 cm 

.3 cm 

.0 cm