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- SUPPLY AIR PERFORMANCE - 3 & 4 Ton w/Belt-Drive Blower

 TABLE 8

UNIT

SIZE

AIR FLOW

CFM

Available External Static Pressure - IWG*

0.20

0.30

0.40

0.50

0.60

0.70

0.80

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

036

2000

843

860

880

925

919

1005

956

1065

993

1145

1030

1195

1067

1235

1900

817

775

854

850

893

920

930

995

970

1065

1008

1125

1046

1170

1800

790

700

828

760

867

840

906

905

944

980

985

1040

1025

1100

1700

-

-

802

670

840

745

881

815

920

900

961

970

1001

1030

1600

-

-

-

-

818

665

858

740

898

820

940

890

980

950

1500

-

-

-

-

-

-

842

695

882

755

922

835

962

895

1400

-

-

-

-

-

-

833

650

867

705

904

765

942

820

1300

-

-

-

-

-

-

-

-

858

665

893

725

932

785

1200

-

-

-

-

-

-

-

-

847

640

880

680

916

730

3 TON - SIDE DUCT CONNECTIONS @ 230/460/575 VOLTS

UNIT

SIZE

AIR FLOW

CFM

Available External Static Pressure - IWG*

0.90

1.00

1.10

1.20

1.30

1.40

1.50

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

036

2000

1103

1270

-

-

-

-

-

-

-

-

-

-

-

-

1900

1085

1210

-

-

-

-

-

-

-

-

-

-

-

-

1800

1064

1145

1102

1180

-

-

-

-

-

-

-

-

-

-

1700

1040

1075

1081

1115

1121

1140

-

-

-

-

-

-

-

-

1600

1020

1005

1060

1050

1100

1085

-

-

-

-

-

-

-

-

1500

1003

945

1044

995

1086

1035

-

-

-

-

-

-

-

-

1400

982

880

1024

920

1067

965

1107

1000

-

-

-

-

-

-

1300

970

835

1010

870

1053

920

1099

960

-

-

-

-

-

-

1200

953

780

992

815

1034

855

1080

905

-

-

-

-

-

-

NOTE:  FOR 208 VOLTS, MULTIPLY VALUES BY 0.95.

*

INCLUDES ALLOWANCES FOR A WET EVAPORATOR COIL, 1" FILTERS, AND THE HEAT EXCHANGERS. REFER TO THE STATIC RESISTANCES TABLE FOR RESISTANCE VALUES

ON APPLICATIONS OTHER THAN GAS / ELECTRIC UNITS WITH SIDE DUCT AIRFLOWS.

UNIT

SIZE

AIR FLOW

CFM

Available External Static Pressure - IWG*

0.20

0.30

0.40

0.50

0.60

0.70

0.80

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

048

2000

843

860

880

925

919

1005

956

1065

993

1145

1030

1195

1067

1235

1900

817

775

854

850

893

920

930

995

970

1065

1008

1125

1046

1170

1800

790

700

828

760

867

840

906

905

944

980

985

1040

1025

1100

1700

-

-

802

670

840

745

881

815

920

900

961

970

1001

1030

1600

-

-

-

-

818

665

858

740

898

820

940

890

980

950

1500

-

-

-

-

-

-

842

695

882

755

922

835

962

895

1400

-

-

-

-

-

-

833

650

867

705

904

765

942

820

1300

-

-

-

-

-

-

-

-

858

665

893

725

932

785

1200

-

-

-

-

-

-

-

-

847

640

880

680

916

730

4 TON - SIDE DUCT CONNECTIONS @ 230/460/575 Volts

UNIT

SIZE

AIR FLOW

CFM

Available External Static Pressure - IWG*

0.90

1.00

1.10

1.20

1.30

1.40

1.50

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

RPM

Watts

048

2000

1103

1270

-

-

-

-

-

-

-

-

-

-

-

-

1900

1085

1210

-

-

-

-

-

-

-

-

-

-

-

-

1800

1064

1145

1102

1180

-

-

-

-

-

-

-

-

-

-

1700

1040

1075

1081

1115

1121

1140

-

-

-

-

-

-

-

-

1600

1020

1005

1060

1050

1100

1085

-

-

-

-

-

-

-

-

1500

1003

945

1044

995

1086

1035

-

-

-

-

-

-

-

-

1400

982

880

1024

920

1067

965

1107

1000

-

-

-

-

-

-

1300

970

835

1010

870

1053

920

1099

960

-

-

-

-

-

-

1200

953

780

992

815

1034

855

1080

905

-

-

-

-

-

-

NOTE:  FOR 208 VOLTS, MULTIPLY VALUES BY 0.95.

*

INCLUDES ALLOWANCES FOR A WET EVAPORATOR COIL, 1" FILTERS, AND  GAS-FIRED HEAT EXCHANGERS. REFER TO TABLE 8 FOR RESISTANCE VALUES ON CONNECTIONS

OTHER THAN  SIDE DUCT AIRFLOWS.

530.18-N8W

Unitary Products Group

9

Summary of Contents for DHUC 036

Page 1: ...CGA and UL listed as follows 1 For use as a forced air furnace with cooling unit 2 For outdoor installation only 3 For installation directly on combustible flooring or in the U S A on wood flooring or...

Page 2: ...tatic Resistances 7 5 Physical Data 7 6 Supply Air Blower Perf 3 6 Ton Direct Drive 8 7 Motor Drive Data Belt Drive Blower 8 8 Supply Air Blower Perf 3 4 Ton Belt Drive 9 9 Supply Air Blower Perf 5 6...

Page 3: ...ulation in your area RIGGING AND HANDLING Exercise care when moving the unit Do not remove any packaging until the unit is near the place of installation Rig the unit by attaching chain or cable sling...

Page 4: ...internal wiring harness furnished with this unit is an integral part of a UL and CGA design certified unit Field alteration to comply with electrical codes should not be required A disconnect switch...

Page 5: ...TYPICAL FIELD WIRING REFER TO ELECTRICAL DATA TABLES TO SIZE THE DISCONNECT SWITCH WIRING OVERCURRENT PROTECTION REFER TO ELECTRICAL DATA TABLES TO SIZE THE DISCONNECT SWITCH WIRING OVERCURRENT PROTE...

Page 6: ...LAME 6 The furnace and its individual manual shut off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1 2 psig 3...

Page 7: ...Table 2 The pressure thru the economizer is greater for 100 outdoor air than for 100 return air If the resistance of the return air duct system is less than 0 25 IWG the unit will deliver less CFM du...

Page 8: ...00 710 1631 1464 780 690 1699 1582 1421 825 750 670 1650 1524 1367 785 720 650 1570 1410 1315 755 690 620 1430 1324 1246 725 650 605 1360 1260 1185 700 630 590 1280 1185 1110 680 610 570 1180 1100 102...

Page 9: ...S REFER TO THE STATIC RESISTANCES TABLE FOR RESISTANCE VALUES ON APPLICATIONS OTHER THAN GAS ELECTRIC UNITS WITH SIDE DUCT AIRFLOWS UNIT SIZE AIR FLOW CFM Available External Static Pressure IWG 0 20 0...

Page 10: ...re IWG 0 20 0 30 0 40 0 50 0 60 0 70 0 80 RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts 060 2500 1059 1560 1077 1590 1095 1630 1114 1650 1134 1660 1158 1685 1181 1720 2400 1032...

Page 11: ...504 630 28 9 16 0 8 0 6 4 165 0 125 0 67 0 50 0 1 3 1 3 0 8 0 8 8 6 6 0 3 0 2 4 46 0 27 3 13 8 11 2 70 40 20 15 70 40 20 072 208 230 3 60 460 3 60 575 3 60 187 414 518 253 504 630 20 3 10 2 8 2 146 0...

Page 12: ...32 3 33 4 75 13 7 15 9 18 1 20 3 22 5 24 7 26 9 28 1 29 3 30 5 31 8 80 10 4 12 8 15 1 17 4 19 8 22 1 24 5 25 9 27 3 28 7 30 2 85 7 2 9 7 12 2 14 6 17 1 19 6 22 0 23 7 25 3 27 0 28 6 90 6 6 8 9 11 3 13...

Page 13: ...material and the supply air ductwork for a distance of 3 feet from the unit The products of combustion must not be allowed to accumulate within a confined space and recirculate Locate unit so that th...

Page 14: ...DMC is energized The DMR or DMC power contacts close which energizes the line voltage draft motor As the speed of the draft motor reaches approximately 2500 RPM the centrifugal switch contact CS locat...

Page 15: ...nput Output 3 4 3 4 5 5 6 6 50 75 100 125 100 125 100 125 40 60 79 99 79 99 79 99 165 165 165 165 165 165 165 165 TABLE 16 LIMIT CONTROL SETTING Gas Valve Anticipator Setpoint Honeywell VR8204M 0 60 a...

Page 16: ...Adjust the resistances in both the supply and the return air duct systems to balance the air distribution throughout the conditioned space The job specifications may require that this balancing be don...

Page 17: ...e permissible range of the regulator setting replace the orifice spuds with spuds of the proper size NOTE To find the Btu input multiply the number of cubic feet of gas consumed per hour by the Btu co...

Page 18: ...e baffles 8 Run the wire brush down the vent tube from the flue collector end 9 If soot build up is particularly bad remove the vent motor and clean the wheel and housing Run the wire brush down the f...

Page 19: ...ed at the draft motor outlet a Check to make sure gas is being supplied to the unit Make sure that the gas pressure to the unit is within the proper limits as described in the POST START CHECK LIST an...

Page 20: ...in U S A Copyright by Unitary Products Group 1998 All rights reserved 530 18 N8W Post Office Box 1592 York Pennsylvania 17405 1592 Unitary Products Group 208 230 575 VOLT MODELS ONLY 208 230 1 60 VOLT...

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