ESP STATIC-600V Manuel d'installation télécharger pdf (Page 4)

PRE-INSTALLATION INFORMATION &

INSTALLATION METHOD

Before You Begin

It is recommended that prior to a kit selection for a retroﬁ t

installation, the existing duct system be inspected for security

and possible improvements. The removal of ﬂ exible duct

sections or replacement of under sized ducts can signiﬁ cantly

improve a buildings air distribution system for increased unit

efﬁ ciency, correction of room stratiﬁ cation issues for personal

comfort and reduction of equipment noise levels transferred

through the ducts.

Some local codes require testing a buildings duct system for

external air inﬁ ltration and correcting any deﬁ cient structures.

Commercial duct systems should be designed for compliance

with the guidelines given in the ASHRAE Handbooks, ACCA

Manual Q, SMACNA manuals or as speciﬁ ed by any applicable

NFPA and local codes or ordinances that may apply. Improving

an existing duct system could be more cost effective then

increasing the units airﬂ ow when weighed against the increased

energy cost for the designed life of the equipment.

Always make sure all equipment installation instructions are

on-hand and reviewed prior to the commencement of any work

for the unit and all ﬁ eld installed accessories. This accessory kit

should be installed prior to the installation of any economizers,

air-dampers, or other kits that require the blower operation

for ﬁ nal setup. On roof top installations, these kits could be

partially installed at ground level prior to the ﬁ nal unit placement

in order to reduce the number of crane operations required.

Pre-Installation Checklist

• Verify the HSDK matches the unit application and building

voltage requirements in Table 2 (page 3).

• Inspect the kit and verify the contents to Table 1 (page 1).

• Inspect the duct system for security, air leakage or inﬁ ltration,

and that it is properly constructed for the airﬂ ow/pressure

requirements of the HSDK.

• Review all equipment and accessory installation instructions

prior to beginning the installation.

• Verify that the unit supply wiring, unit disconnect & over-

current protection is sized properly for the addition of the

HSDK and any other accessory kits that will utilize the same

electrical circuit. See Figure 9 (page 10) for recommended

procedure on how to determine the proper 3 phase wire size.

MOTOR

PART

NUMBER

RATED

POLES VOLTAGE HZ Ø

RATED

RPM

NEMA

NOM.

EFF.

NEMA

FRAME

SIZE

MOTOR AMPERAGE

REQUIRED

EXTERNAL

PROTECTOR

FLA SF SFA

621819 3 4 200-230 60 3 1725 81% † 145T 9.10 - 8.90 1.15 10.2 - 9.70 - N/A -

621820 3 4 460 60 3 1725 81% † 145T 4.4 1.15 4.8 - N/A -

622006 5 4

208-230/460 60 3 1760 87.5%

184T

14.0 - 13.4 / 6.7 1.15 15.0 - 15.0 / 7.5

YES

190 / 380 50 3 1445 84% 15.9 / 7.9 1.00 15.9 / 7.9

622026 2 4 208-230/460 60 3 1755 85.5% 145T 5.8 - 5.5 / 2.8 1.15 6.6 - 6.1 / 3.1 YES

622074 3 4

208-230/460 60 3 1765 86.5%

182T

8.8 - 8.6 / 4.4 1.15 10.1 - 9.9 / 5.0

YES

190 / 380 50 3 1455 84% 9.8 / 4.9 1.00 9.8 / 4.9

622254 2 4 208-230/460 60 3 1725 84% † 145T 6.2 - 5.8 / 2.9 1.15 7.0 - 6.6 / 3.3 - N/A -

622305 1.5 4 208-230/460 60 3 1755 86.5% 145T 4.4 - 4.2 / 2.1 1.15 5.0 - 4.6 / 2.3 YES

NOTES:

FLA = Full Load Amps

SF = Service Factor

† Approximate Efﬁ ciency

SFA = Service Factor Amps

Nom. Eff. = Nominal Efﬁ ciency

Table 3. High Static Drive Motor Data

HSDK Installation Method

1. Set the thermostat and unit disconnect(s) to the OFF position.

Verify that the unit has been isolated from all electrical

power sources. For HSDK’s that do not require a motor

replacement, go to step 6.

2. Open/remove the access panels for the units control

panel, blower compartment and ﬁ eld wiring compartments.

NOTE: Never lift or hoist a unit without the access panels

installed or closed and securely attached with all of the

screws supplied from the factory. Refer to the unit installation

instructions for additional details if necessary.

3. Locate the blower motor and trace the motor wires back to

the blower motor contactor or external motor relay. Carefully

cut any zip-ties to free the motor wires from the unit or wiring

harness.

4. Disconnect the motor wires from the overload relay or

contactor T1, T2 & T3 terminals or box lugs.

5. Remove the factory motor & lead assembly from the motor

mounting plate and install the HSDK motor & lead assembly

in the unit. See Figure 1 (page 5) for overload relay mounting

locations.

6. Install the motor overload relay (if required) as described

on page 5. Re-route the blower motor wires to the overload

or blower contactor and secure with the supplied zip-ties.

• Refer to Table 1 to determine the HSDK motor part number

and then Table 3 to determine the service factor amps (SFA)

for the HSDK motor at the correct unit supply voltage. Set

the external overload relay to the motor SFA for that voltage.

NOTE: Replacement overload relay part numbers can be

found using the data in Tables 3 & 4.

7. Verify the proper operation of the motor sheave. Refer to the

blower chart called out for the application in Table 1 and set

the sheave to the proper set-point. Install the HSDK blower

pulley and belt and reference the instructions on pages 6 - 8.

Tighten the belt and secure the assembly.

8. Verify that all electrical connections have been made and

wiring properly secured. Complete the instructions on

verifying the electrical phase balance and blower rotation

direction (pages 8 - 9).

9. After the completion of any other unit or accessory installation

requirements, close or re-install the blower compartment

access panel and restore the electrical power to the unit.

Verify that the unit is delivering the proper airﬂ ow as described

on pages 8 - 9.

10. Replace all other access panels and refer to the unit

installation instructions to complete the installation and

place the unit into normal service.

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ESP STATIC-600V Manuel d'installation Page 4

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