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Pmax 10z Mechanical Utilities Pyramax 125/150 (10 Zone) Mechanical Utility Requirement s Utility Size Pressure Nominal Flow Comments N2 0.5 NPT 65-80 PSIG 30 SCFM See Note: 4 Air (optional) 0.5 NPT 65-80 PSIG 30 SCFM Air…

Pyramax 10 zone HI PWR

Pyramax 125/150 HI POWER HEATER

PURCHASER TO SUPPLY CIRCUIT BREAKER OR FUSED DISCONNECT SWITCH FOR:

240 Volts 350 Amperes 3 Phase 3 Wires

130 Kilovolt-amperes 50/60HZ

Furnaces case must be grounded per local codes

Line Total htr Avg htr Typical

Voltages L1 L2 L3 Neutral Total KVA Power load [30%] oper. pwr.

200 239 239 250 n/a 88 80 24 32 not std offering

208 249 249 260 n/a 96 87 26 34

220 263 263 275 n/a 107 97 29 37

230 275 275 288 n/a 117 106 32 39

240 287 287 300 n/a 127 115 35 42

Typical Operating Power 42 KVA Typical Oper Pwr = Avg. Htr. Load + 0.8 x (6KVA+1.5KVA+2KVA)

Average heater load 35 KW Average heater load = 30% of Total Htr Load

Overtemp T/C's in zones

Pyramax 125/150 HI POWER HEATER

PURCHASER TO SUPPLY CIRCUIT BREAKER OR FUSED DISCONNECT SWITCH FOR:

480 Volts 175 Amperes 3 Phase 3 Wires

130 Kilovolt-amperes 50/60HZ

Furnaces case must be grounded per local codes

Line Total htr Avg htr Typical

Voltages L1 L2 L3 Neutral Total KVA Power load [30%] oper. pwr.

440 132 132 138 n/a 107 97 29 37

460 138 138 144 n/a 117 106 32 39

480 144 144 150 n/a 127 115 35 42

Typical Operating Power 42 KVA Typical Oper Pwr = Avg. Htr. Load + 0.8 x (6KVA+1.5KVA+2KVA)

Average heater load 35 KW Average heater load = 30% of Total Htr Load

Overtemp T/C's in zones

Pyramax 125/150 HI POWER HEATER

PURCHASER TO SUPPLY CIRCUIT BREAKER OR FUSED DISCONNECT SWITCH FOR:

415/240 Volts 200 Amperes 3 Phase 4 Wires

130 Kilovolt-amperes 50/60HZ

Furnaces case must be grounded per local codes

Line Total htr Avg htr Typical

Voltages L1 L2 L3 Neutral Total KVA Power load [30%] oper. pwr.

380/220 145 159 159 159 107 97 29 37

400/230 152 166 166 166 117 106 32 39

415/240 158 173 173 173 127 115 35 42

Typical Operating Power 42 KVA

Typical Oper Pwr = Avg. Htr. Load + 0.8 x (6KVA+1.5KVA+2KVA)

Average heater load 35 KW Average heater load = 30% of Total Htr Load

Overtemp T/C's in zones

LINE CURRENT- [AMPERES]

MAXIMUM LOAD DATA

LINE CURRENT- [AMPERES]

MAXIMUM LOAD DATA

LINE CURRENT- [AMPERES]

MAXIMUM LOAD DATA

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2/13/06

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Pmax 10z Mechanical Utilities

Pyramax 125/150 (10 Zone) Mechanical Utility Requirement

Utility Size Pressure Nominal Flow Comments

N2 0.5 NPT 65-80 PSIG 30 SCFM See Note: 4

Air (optional) 0.5 NPT 65-80 PSIG 30 SCFM Air required only if optional dual inlet was purchased. See Note: 4

H20 Drain 0.5 NPT Open Drain 3 - 6.5 GPM See Notes: 4, 5

H2O Inlet 0.5 NPT 30-85 PSIG 3 - 6.5 GPM Water inlet temp required: 5 - 30 C (41 - 86 F) See Notes: 4, 5

Entrance Lip Vent Exhaust 5.0" Dia. 0.1 - 0.05 IWC 125 SCFM See Notes: 1,2,3

Exit Lip Vent Exhaust 5.0" Dia. 0.1 - 0.05 IWC 200 SCFM See Notes: 1,2,3

Notes:

1. Connect active exhaust directly to vent

2. Exhaust gas flows are based on a 3-1 entrainment ratios. Different entrainment ratios may be necessary. Consult you local HVAC specialist if necessary.

3. BTU recommends the use on filtration on customer's exhaust system to prevent the build up of effluents in the duct work.

4. Recommended supply line is 0.62" inside diameter. Larger diameters may be required for long supply lines.

5. BTU recommends 20 °C water for 400 °C application

Maximum Operating Temperature - 350 Degrees Celsius

Nominal Operating Temperature - 100 to 300 Degrees Celsius

52089673.xls Rev:0

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2/13/06

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APPLIED VOLTAGES

200 208 220 230 240

ZONE HEATE

AMPS TOTAL TOTAL AMPS TOTAL TOTAL

MPS TOTAL TOTAL

MPS TOTAL TOTAL AMPS TOTAL TOTAL

LENGTH POSITION AMPS K

MPS K

AMPS K

HIGH POWER HEATERS 14" T 17.32 A 34.63 A 6.9 KW 18.01 A 36.02 A 7.5 KW 19.05 A 38.1 A 8.4 KW 19.91 A 39.83 A 9.2 KW 20.78 A 41.56 A 10.0 KW

zones 1, 2, 9, and 10 B 17.32 A 18.01 A 19.05 A 19.91 A 20.78 A

LOW POWER HTRS 14" T 9.4 A 18.8 A 3.8 KW 9.8 A 19.6 A 4 KW 10.3 A 20.6 A 4.6 KW 10.8 A 21.6 A 5 KW 11.3 A 22.6 A 5.4 KW

zones 3 through 8 B 9.4 A 9.8 A 10.3 A 10.8 A 11.3 A

APPLIED VOLTAGES

440 460 480

ZONE HEATE

AMPS TOTAL TOTAL

MPS TOTAL TOTAL

LENGTH POSITION AMPS K

MPS K

HIGH POWER HEATERS 14" T 9.52 A 19.05 A 8.4 KW 9.96 A 19.91 A 9.2 KW 10.39 A 20.78 A 10.0 KW

zones 1, 2, 9, and 10 B 9.52 A 9.96 A 10.39 A

LOW POWER HTRS 14" T 5.15 A 10.3 A 4.6 KW 5.4 A 10.8 A 5 KW 5.65 A 11.3 A 5.4 KW

zones 3 through 8 B 5.15 A 5.4 A 5.65 A

NOTES for HEATER DATA SHEET TABLE

FURNACE CONFIGUTATION

1. SELECT THE APPROPRIATE VOLTAGE COLUMN FOR HEATER AMPS AND KW RATINGS. T = TOP

2. FOR 3 PHASE 4 WIRE SYSTEMS REFER TO THE PHASE VOLTAGE. FOR EXAMPLE; B = BOTTOM

AT 380/220V USE THE 220V COLUMN L = LEFT

AT 400/230V USE THE 230V COLUMN R = RIGHT

AT 415/240V USE THE 240V COLUMN S = SIDE

C = CENTER

3. THE CALCULATIONS ARE BASED ON NOMINAL RESISTANCE AND VOLTAGE. THE

APPROXIMATED HOT RESISTANCE:

LOW PWR HATERS - 21.3 OHMS @240V

HIGH PWR HATERS - 11.5 OHMS @240V

TOLERANCE FOR THE HEATER RESISTANCE IS +/- 5% AND FOR VOLTAGE +/- 10%

APPROVALS DATE Title BTU International, Inc.

DRAWN RTARCZON FEB06 HEATER DATA SHEE

North Billerica, MA. 01862

~ ~ ~ ~ CHECK RTARCZON FEB06 PYRAMAX 150/125 Size Drawing No. REV

REV. Description Date Approved ENGR. RTARCZON FEB06 WITH HI-POWER HEATERS I

B 5241098 0

REVISIONS PROD. ZONES 1, 2 AND 9, 10 TOP/BOTTOM Scale --- Excel Database Sheet 1 of 1

PYRAMAX 150/125: 10 ZONES TOP & BOTTOM WITH HI-

POWER HEATERS IN ZONES 1, 2, 9, and 10 TOP & BOTTOM

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