Energy Tech Laboratories DHG240, DHG180 Static RESISTANCES1, Power Exhaust Performance

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035-17233-000-C-0702

TABLE 13: STATIC RESISTANCES1

 

 

 

RESISTANCE, IWG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

 

 

 

DESCRIPTION

 

 

 

 

 

 

 

 

15 TON

 

 

 

20 TON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4500

5765

 

7200

6000

7000

9400

 

 

 

 

 

 

 

 

WET COIL

0.1

0.1

 

0.1

0.1

0.1

0.1

 

 

 

 

 

 

 

 

ECONOMIZER OPTION

0.1

0.1

 

0.1

0.1

0.1

0.1

 

 

 

 

 

 

 

 

HORIZONTAL DUCT CONN.2

0.2

0.3

 

0.5

0.2

0.3

0.5

1Deduct these resistance values from the available unit ESP values listed in the respective blower per- formance table except for Horizontal Duct Connections.

2Add these values due to less airflow resistance.

TABLE 14: POWER EXHAUST PERFORMANCE

STATIC RESISTANCE OF RETURN DUCTWORK, IWG

MOTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.2

0.3

 

 

0.4

 

0.5

 

0.6

SPEED1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

 

kW

CFM

kW

CFM

 

kW

CFM

 

kW

CFM

 

kW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HIGH2

5250

 

0.83

4500

0.85

4200

 

0.88

3750

 

0.93

3000

 

0.99

MEDIUM

4900

 

0.77

3900

0.79

3500

 

0.82

2900

 

0.85

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOW

4400

 

0.72

3700

0.74

3000

 

0.78

-

 

-

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1Power exhaust motor is a 3/4 HP, PSC type with sleeve bearings, a 48 frame and inherent protection.

2The factory setting.

TABLE 15: BLOWER MOTOR AND DRIVE DATA

 

 

 

 

MOTOR1

 

ADJ. MOTOR PULLEY

FIXED BLOWER PULLEY

 

BELT

 

 

 

BLWR

 

 

(NOTCHED)

 

MODEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DRIVE

RANGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PITCH

 

 

 

 

PITCH

 

 

PITCH

 

SIZE

 

(RPM)

 

 

 

EFF.

DESIGN-

O/D

BORE

DESIGN-

O/D

BORE

DESIG-

 

 

 

HP

FRAME

 

DIA

DIA

LNGTH.

QTY.

 

 

 

 

(%)

NATION

(in.)

(in.)

NATION

(in.)

(in.)

NATION

 

 

 

 

 

 

 

 

 

(in.)

 

 

 

 

(in.)

 

 

(in.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Std.

850/1065

 

 

 

 

 

 

 

 

 

BK90

8.75

8.4

1

BX70

71.8

1

 

 

 

 

 

 

 

 

 

4.3-

 

 

 

 

 

 

 

 

 

15 Ton

High

 

5

184T

 

89.5

1VP56

5.35

1-1/8

 

 

 

 

 

 

 

 

 

 

5.32

 

 

 

 

 

 

69.8

1

 

Spd.

965/1190

 

 

 

 

 

 

 

 

BK80

7.75

7.4

1

BX68

 

Acs.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Std.

870/1025

 

 

 

 

 

 

 

 

 

BK120

11.75

11.4

1-3/16

BX83

84.8

1

 

 

 

 

 

 

 

 

 

5.5-

 

 

 

 

 

 

 

 

 

20 Ton

High

 

7.5

213T

 

91

1VP68

6.75

1-3/8

 

 

 

 

 

 

 

 

 

 

6.52

 

 

 

 

 

 

81.8

1

 

Spd.

950/1120

 

 

 

 

 

 

 

 

BK110

10.75

10.4

1-3/16

BX80

 

Acs.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1All motors have a nominal speed of 1800 RPM, a 1.15 service factor and a solid base. They can operate to the limit of their service factor because they are located in the moving air, upstream of any heating device.

2DO NOT close this pulley below 1 turn.

18

Unitary Products

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Contents Installation Instruction Table of Contents General Safety Considerations Product NomenclatureInstallation Agency ApprovalsInspection Location Rigging and HandlingDuctwork Fixed Outdoor AIR Intake DamperCondensate Drain Service AccessPower and Control Wiring CompressorsGAS Piping Control Wire SIZES1Combustion Discharge GAS ConnectionControlwiring Pipe SIZING1 External Supply Connection External SHUT-OFFPower EXHAUST/BAROMETRIC Relief Damper and Rain Hood Option Enthalpy SET Point AdjustmentVent and Combustion AIR Hoods Enthalpy Setpoint Adjustment Minimum Clearances Physical DataDHG Voltage LIMITATIONS1 DHG Electrical DataUnit Dimensions DHG180 & 240 Front View Unit Dimensions DHE/DHG180 & 240 Rear View Utilities EntryDHG180 Bottom Duct CONNECTIONS1 230/460 Volt and High Speed Drive AccessoryDHG 15 TON Supply AIR Blower Performance Volt and Standard DriveVolt and High Speed Drive Accessory DHG 20 TON Supply AIR Blower PerformanceDHG240 Bottom Duct CONNECTIONS1 Power Exhaust Performance Static RESISTANCES1Blower Motor and Drive Data Cooling System Safety ControlsOperation Preliminary Operation CoolingHeating System Intermittent BlowerStart UP Pilot Checkout Manifold GAS Pressure AdjustmentPOST-START Check List GAS To Shut DownBurner AIR Shutter Adjustment Checking Supply AIR CFMSecure OWNER’S Approval Checking GAS InputGAS Rate Cubic Feet PER HOUR1 Belt Drive BlowerMaintenance Normal MaintenanceCleaning Flue Passages and Heating ELE- Ments Troubleshooting Typical Flue Baffle INSTALLA- Tion035-17233-000-C-0702 Unitary

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