Modine PDP150LP Bedienerhandbuch PDF herunterladen (Seite 11)

6-560.4

INSTALLATION - HIGH ALTITUDE ACCESSORY KIT

HIGH ALTITUDE ACCESSORY KIT

Altitude (ft)

Gas Heating Values at Altitude (BTU/ft

)

USA Canada

0-2,000 1,050 1,050

2,001-3,000 929

9453,001-4,000 892

4,001-4,500 874

4,501-5,000 856 856

5,001-6,000 822 822

6,001-7,000 789 789

7,001-8,000 757 757

8,001-9,000 727 727

9,001-10,000 698 698

Altitude (ft)

Gas Heating Values at Altitude (BTU/ft

)

USA Canada

0-2,000 2,500 2,500

2,001-3,000 2,212

2,2503,001-4,000 2,123

4,001-4,500 2,080

4,501-5,000 2,038 2,038

5,001-6,000 1,957 1,957

6,001-7,000 1,879 1,879

7,001-8,000 1,803 1,803

8,001-9,000 1,731 1,731

9,001-10,000 1,662 1,662

Table 11.1 - Natural Gas Heating Values at

Altitude

➀ ➂ ➃

Table 11.2 - Propane Gas Heating Values at

Altitude

➁ ➂ ➃

Modine’sgas-firedequipmentstandardinputratingsare

certified by ETL. For elevations above 2,000', ANSI Z223.1

requires ratings be reduced 4 percent for each 1,000'. above

sea level. For units in Canada, CSA requires that ratings be

reduced 10 percent at elevations above 2,000'. The high altitude

adjustment instructions and pressure switch kits listed

in this manual are for use with units that will be installed over

2,000'. These methods and kits comply with both ANSI Z223.1

and CSA requirements.

If a unit is to be installed at higher elevations AND converted from

natural gas to propane gas operation, a propane conversion kit

must be used in conjunction with the pressure adjustment

methods and pressure switch kits listed herein. For the selection

and installation instructions for propane conversion kits, please

see the latest revision of Modine Manual 75-515.

Selection of the Proper Pressure and Kit

To determine the proper manifold pressure at altitude and if

required, the proper combustion air pressure switch kit, the full

model number of the heater, the fuel to be used, and the

altitude the unit will be installed at must be known. Refer to

the unit serial plate or carton label to obtain the necessary

information about the unit.

After obtaining this information, refer to the gas pressure and

selection charts shown in Tables 11.1 through 11.3. The

pressure charts are differentiated by elevation, fuel type, and

country the product is being installed in. The selection charts

are differentiated by product type, altitude and fuel type. If

converting from natural gas to propane gas and operation

at high altitude, both a propane conversion kit and a

pressure switch kit must be used (if applicable). Selection

charts include the proper kit suffix, when required.

Manifold Pressure Adjustment

The inlet pressure to the unit must be confirmed to be within

acceptable limits (6-7" W.C. for natural gas and 11-14" W.C. for

propane gas) before opening the shutoff valve or the

combination gas valve may be damaged.

Heaters for use with natural gas have gas valves factory set at

3.5" W.C. manifold pressure at 7.0" W.C. inlet pressure.

Units for use with propane gas are set for 10.0" W.C. manifold

pressure at 14.0" W.C. inlet pressure.

Installation above 2,000' elevation requires adjustment of the

manifold pressure as described.

Derated BTU Content Gas and Manifold Pressure

Calculation

Some utility companies may derate the BTU content (heating

value) of the gas provided at altitude to a value other than 1,050

BTU/ft

for natural gas or 2,500 BTU/ft

for propane gas to allow

certain heating appliances to be used with no manifold pressure

adjustments. For this reason it is necessary that the supplying

utility be contacted for detailed information about the gas type

and BTU content (heating value) before operating any heater.

Tables 11.1 and 11.2 show the standard derated heating values

(4%per1,000’ofelevationintheUSAand10%between2,001'

and 4,500' elevation in Canada) of natural and propane gases

at various altitudes. If the utility is supplying gas with heating

values as shown in Tables 11.1 and 11.2, the manifold pressure

should be set to 3.5" W.C for natural gas and 10.0" W.C. for

propane gas.

NOTE: Only the high fire gas pressure need be adjusted, low

fire gas pressure should remain the same.

Table 11.3 - High Altitude Kits for PTP ➀

Model Size Details

U.S.A. and Canada

0-2,000 ft 2,001-4,500 ft 4,501-5,500 ft 5,501-6,500 ft 6,501-7,500 ft

150-250

Kit Suffix

Not Required Label Only Label Only Label Only Label Only

Item Code

300

Kit Suffix

Not Required Label Only Label Only

0008 0008

Item Code 68412 68412

350

Kit Suffix

Not Required Label Only Label Only Label Only Label Only

Item Code

400

Kit Suffix

Not Required

0009 0009 0009 0009

Item Code 68413 68413 68413 68413

➀ For Label Only kits, Modine

part number 5H0807146005

isrequiredtobelledoutand

attached to the unit by the

installer. Please contact the

local Modine representative

at 1.866.828.4328 (HEAT).

➀ Values shown are for 3.5" W.C. manifold pressure, for other BTU content values (available from local utility) use Equation 12.1 to calculate manifold pressure.

➁ Values shown are for 10.0" W.C. manifold pressure, for other BTU content values (available from local utility) use Equation 12.1 to calculate manifold pressure.

➂ When installed at altitudes above 2,000', a pressure switch may need to be changed. Refer to Table 11.3 to determine if a switch change is required.

➃ Gas heating values are derated 4% per 1,000' of elevation in the USA and 10% between 2,000' and 4,500' elevation in Canada in accordance with ANSI Z223.1

and CSA-B149, respectively.

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 19 20

Kommentare zu diesen Handbüchern

Keine Kommentare

Modine PDP150LP Bedienerhandbuch Seite 11

Kommentare zu diesen Handbüchern