Enviro C Series Bedienungsanleitung

SERIES C

VERTICAL BELT DRIVE

BLOWER COIL UNITS

Supersedes: ET115.24-NOM6 (615) Form ET115.24-NOM6 (0521)

MODELS VB & VR

INSTALLATION, OPERATION & MAINTENANCE

ENVIRO-TEC

FORM ET115.24-NOM6 (0521)

TABLE OF CONTENTS

SAFETY SYMBOLS

The following symbols are used in this document to alert the reader to areas of potential hazard:

CAUTION identies a hazard which

could lead to damage to the machine,

damage to other equipment and/or

environmental pollution. Usually an

instruction will be given, together with

a brief explanation.

NOTE is used to highlight additional

information which may be helpful to

you.

DANGER indicates an imminently

hazardous situation which, if not

avoided, will result in death or serious

injury.

WARNING indicates a potentially

hazardous situation which, if not

avoided, could result in death or se-

rious injury.

TABLE OF CONTENTS.................................................................................................................2

SAFETY SYMBOLS ......................................................................................................................2

SAFETY CONSIDERATIONS ........................................................................................................3

PRE START-UP..............................................................................................................................4

Receiving and Inspecting ....................................................................................................................4

Unit Rigging and Placement.................................................................................................................4

Clearance ...............................................................................................................................................4

FIELD WIRING...............................................................................................................................4

BELTS, DRIVES, AND BEARINGS...............................................................................................5

DETERMINING DEFLECTION FORCE.........................................................................................5

REPLACEMENT PARTS ...............................................................................................................6

COOLING/HEATING MEDIUM CONNECTIONS...........................................................................6

CONDENSATE DRAIN AND TRAPS ............................................................................................7

GENERAL BELT AND BEARING MAINTENANCE......................................................................8

MOTOR ELECTRICAL DATA........................................................................................................9

UNIT WEIGHT DATA......................................................................................................................9

MOTOR/DRIVE WEIGHT DATA.....................................................................................................9

MODEL VB ARRANGEMENTS...................................................................................................10

MODEL VR ARRANGEMENTS...................................................................................................10

INSPECTION & START-UP CHECKLIST....................................................................................11

DIMENSIONS...............................................................................................................................12

Model VB Basic Unit - Discharge Arrangement 2.............................................................................12

Model VB Basic Unit - Discharge Arrangement 1 with Blow-thru Electric Heat............................13

Model VR Basic Unit - Discharge Arrangement 2.............................................................................14

Model VMR with Inlet Damper Section (Requires Base rail) - Discharge Arrangement 2.............15

3 Inch Baserail Assembly ...................................................................................................................16

Model VB/VR Discharge Plenum, Sizes 08-30 ..................................................................................17

Model VB Return Plenum, Sizes 08-30..............................................................................................18

Model VB/VR Discharge Section w/ Heating Coil, Sizes 08-30........................................................19

ENVIRO-TEC 3

FORM ET115.24-NOM6 (0521)

The equipment covered by this manual is designed for

safe and reliable operation when installed and operated

within its design specication limits. To avoid personal

injury or damage to equipment or property while

installing or operating this equipment, it is essential

that qualied, experienced personnel perform these

functions using good judgment and safe practices. See

the following cautionary statements.

ELECTRICAL SHOCK HAZARDS.

All power must be disconnected prior

to installation and serving this equip-

ment. More than one source of power

may be present. Disconnect all power

sources to avoid electrocution or shock

injuries.

MOVING PARTS HAZARDS. Mo-

tor and Blower must be disconnected

prior to opening access panels. Motors

can start automatically, disconnect

all power and control circuits prior to

servicing to avoid serious crushing or

dismemberment injuries.

HOT PARTS HAZARDS. Electric Re-

sistance heating elements must be dis-

connected prior to servicing. Electric

Heaters may start automatically, dis-

connect all power and control circuits

prior to servicing to avoid burns.

Check that the unit assembly and com-

ponent weights can be safely supported

by rigging and lifting equipment.

All assemblies must be adequately

secured during lifting and rigging by

temporary supports and restraints un-

til equipment is permanently fastened

and set in its nal location.

All unit temporary and permanent

supports must be capable of safely

supporting the equipment’s weight and

any additional live or dead loads that

may be encountered. All supports must

be designed to meet applicable local

codes and ordinances.

All fastening devices must be designed

to mechanically lock the assembly in

place without the capability of loosen-

ing or breaking away due to system

operation, vibration, impact or seismic

event.

Secure all dampers when servicing

damper, actuator or linkages. Dampers

may activate automatically, disconnect

control circuits or pneumatic control

systems to avoid injury.

Protect adjacent ammable materials

when brazing, Use ame and heat pro-

tection barriers where needed. Have

re extinguisher available and ready

for immediate use.

SAFETY CONSIDERATIONS

ENVIRO-TEC

FORM ET115.24-NOM6 (0521)

PRE START-UP

Improper installation, adjustment,

alterations, service or maintenance

can cause injury and property damage,

as well as possible voiding of factory

warranty. For assistance or additional

information, consult a qualied con-

tractor.

Receiving and Inspecting

Thoroughly examine the exterior and interior of all

units for transportation damage to the cabinet, piping,

blower(s), motor(s), coil(s), electric heat and electrical

components. Interior damage may occur, even with no

visible exterior damage. If damage is found, immediately

le a claim with the carrier. Note the damage on the bill

of lading before signing for the shipment.

Check the bill of lading for verication that all items

shown (including loose items) have been received.

Notify the manufacturer’s representative of any

shortages or items shipped in error.

Unit Rigging and Placement

Install ductwork to comply with ASHRAE Fundamentals

Handbook, SMACNA, NFPA 90A and local code.

The installation mustconform with local buildingcodes

and the National Electric Code.

Locate unit support in accordance with the mechanical

and structural plans. If so equipped, locate the isolator

placement and correct size as shown on the submittal

drawing.

If oor mount isolators are required, factory or eld

provisions must be made for isolator attachment. Units

can be mounted directly to the oor or on a base rail.

The optional base rail is recommended for units with

isolators.

Do not handle the unit using coil stubout connectors, as

damage may occur at brazed joint(s).

Clearance

All units, including those with electric heat, are listed

for zero clearance to combustibles.

Sufficient clearance for normal servicing of this

equipment is recommended.

All electrical panels must have 36” working space in

front of panel to meet National Electric Code; however,

local inspectors maywave this requirementif the hinged

cover has a 90° free swing.

FIELD WIRING

Prior to installing any wiring, check

the unit name plate for main power

voltage, control voltage, transformer

sizing and any fuse sizing. All eld

wiring must comply with National

Electric Code and local code require-

ments.

Tighten all wiring lugs and terminals prior to

connecting power to the unit, as they may loosen during

transportation.

Route the power lines to the power distribution

terminals inside the control enclosure. If a factory wired

disconnect switch is installed, then connect the power

lines to the line side of the switch.

Mount and wire any eld installed items as indicated on

the factory supplied wiring diagram. When mounting

eld installed components, do not jumper out or rewire

any factory wiring without written approval from

ENVIRO-TEC. Violation will void warranty.

ENVIRO-TEC 5

FORM ET115.24-NOM6 (0521)

BELTS, DRIVES, AND BEARINGS

For safety, please turn off all power

before checking belt tension.

Prior to starting the unit, tighten all set screws on the

fan(s), sheaves and bearings where applicable. Set

screws may loosen during transportation.

Sheaves must be in line. Use a straight edge to verify.

General belt tension rules for V-Belt drives:

• Ideal tension is the lowest tension at which the belt

will not slip under peak load conditions.

• Check tension frequently during the rst 24-48

hours of operation.

• Over tensioning shortens belt and bearing life.

• Keep belts free from foreign material which may

cause slip.

• Make V-Belt inspection on a periodic basis. Ten-

sion when slipping. Never apply belt dressing, as

this will damage the belt and cause early failure.

• The resilient blower bearing must not deect later-

ally once belt is tightened.

DETERMINING DEFLECTION FORCE

(see Fig. 1)

Example Solution

Belt Span = 20”

Belt Type – A, new, unnotched

RPM = 1000

Small Sheave Diameter = 4.0”

Deection = 20 ÷ 64 =

.313” (round to 5/16”).

Referring to table below,

deection force at calcu-

lated deection is 6.8lbs.

FIG. 1 - COMPUTING DEFLECTION FORCE

See table below for deection force in pounds.

Used Belt New Belt Used Belt New Belt

3.0 - 3.6" 1000 - 2500 3.7 5.5 4.1 6.1

3.8 - 4.8" 1000 - 2500 4.5 6.8 5.0 7.4

5.0 - 7.0" 1000 - 2500 5.4 8.0 5.7 9.4

3.4 - 4.2" 860 - 2500 4.9 7.2

4.4 - 5.6" 860 - 2500 5.3 7.9 7.1 10.5

5.8 - 8.6" 860 - 2500 6.3 9.4 8.5 12.6

Not Recommended

A, AX

B, BX

Gripnotch Belts and

Notched Gripbands

DEFLECTION FORCE — LBS.

Belt

Type

Smalllest

Sheave

Diameter

Range

RPM Range Supe r Gripbelts an d

Unnotched Gripband s

LD13903

LD13902

ENVIRO-TEC

FORM ET115.24-NOM6 (0521)

REPLACEMENT PARTS

Replacement parts may be ordered from the local

ENVIRO-TEC representative. Factory replacement

parts should be used wherever possible to maintain

agency listings. Should replacement parts not be

purchased from the factory, use only parts duplicating

the exact type, size, voltage and other operating

characteristics of the original part. Contact the local

representative before using any substitute part or

making unit modications. Any substitutions and/or

modications not authorized by the factory will void

the unit warranty and could result in personal injury

and/or property damage.

When ordering parts, the following information must be

supplied to ensure proper part identication:

1. Complete unit model number

2. CO number from the unit nameplate

3. Complete parts description, including any identi-

cation numbers.

COOLING/HEATING MEDIUM CONNECTIONS

Toxic residues and loose particles

resulting from manufacturing and

eld piping techniques such as joint

compounds, soldering ux, and metal

shavings may be present in the unit

and the piping system. Not for use with

domestic or potable water systems.

Submittals and Product Catalogs detailing unit operation,

controls, and connections should be thoroughly

reviewed BEFORE beginning the connection of the

various cooling and/or heating mediums to the unit.

Hot water and cooling coils are male sweat connection.

Use appropriate brazing alloy for system temperature

and pressure. Refer to equipment construction submittal

drawing for specic connection size. MAXIMUM

HYDRONIC SYSTEM OPERATING PRESSURE

MUST NOT EXCEED 450 PSIG.

All factory provided or eld provided valve packages

are to be installed as required, and all service valves

should be checked for proper operation. Refer to the

valve component manufacturer’s submittals and/or

IOM manual for proper installation, troubleshooting,

and operational guidance.

Valves and TXVs must be secured and supported to

avoid damage to coil headers or distributor tubes. All

valves, pipes, and components must be sufciently

supported to ensure structural integrity and proper

operation of the unit.

All water coils must be protected from

freezing after initial lling with water.

Even if the system is drained, unit coils

may still hold enough water to cause

damage when exposed to temperatures

below freezing.

Refrigerant systems should be tested with dry nitrogen

rather than air to prevent the introduction of moisture

into the system. In the event that leaking or defective

components are discovered, the Sales Representative

must be notied BEFORE any repairs are attempted.

All leaks should be repaired before proceeding with

the installation.

After system integrity has been established, the piping

should be insulated in accordance with the project

specications. ALL chilled water piping and valves or

refrigerant suction piping not located over drain pans

must be insulated to prevent damage from sweating.

This includes factory and eld piping inside the unit

cabinet.

The drain should always be connected and piped to an

acceptable disposal point. For proper moisture carry-

off, the drain piping should be sloped away from the

unit at least 1/8” per foot. A drain trap may be required

by local codes and it is strongly recommended for odor

containment.

ENVIRO-TEC 7

FORM ET115.24-NOM6 (0521)

CONDENSATE DRAIN AND TRAPS

Drain lines should be at least the same size as the drain

pan connection. Properly sized traps should be used to

allow the condensate from the coils to drain from the

drain pan. See Fig. 2.

Trap detail for negative

cabinet static pressure Trap detail for positive

cabinet static pressure

NO BASE RAIL

Housekeeping pad

Required to accommodate

trap height

WITH BASE RAIL

Depending on static

pressure, housekeeping

pad may not be needed

for trap installation

WITH BASE RAIL AND

HOUSEKEEPING PAD

FIG. 2 - CONDENSATE DRAIN & TRAPS

LD13929

ENVIRO-TEC

FORM ET115.24-NOM6 (0521)

GENERAL BELT AND BEARING MAINTENANCE

Frequency of bearing re-lubrication depends upon the

operating conditions. The proper amount of lubricant

in the bearings is very important. Both excessive and

inadequate lubrication may cause failure. The bearings

should be re-lubricated while they are rotating (if it is

safe to do so); the grease should be pumped in slowly

until a slight bead forms around the seals. It is solely

the owner’s responsibility for maintaining a proper

lubrication schedule. Failure to do so may cause

substantial unit damage and voiding of the factory

warranty. Note that only those bearings equipped with

a grease tting can be re-lubricated.

The following is a generic guide intended for standard

equipment used in common situations.

MAINTENANCE TO EVERY3MONTHS EVERY

BE PERFORMED OF OPERATION (MINIMUM) FALL

Filters (as required) x

Grease Bearings x

Inspect & Clean Blower Wheel x

LubricateFan Motor x

(if applicable)

Check Belt Tension x

Check Electrical Connections x

Check Bearings, Drives & x

Blower Wheel forTightness

Normal operation is based on 8 hours a day. If unit runs more than this, adjust accordingly.

RECOMMENDED TORQUE FOR TIGHTENING SETSCREWS

Set Screw Diameter Minimum RecommendedTorque

Inch lbs. Foot lbs.

#10 28 2.3

1/4 66 5.5

5/16 126 10.5

3/8 228 19.0

7/16 348 29.0

1/2 504 42.0

5/8 1104 92.0

This manual is not intended to sup-

plant regulations or local codes having

jurisdiction. It is recommended that

these items be reviewed and com-

pleted prior to initiating equipment

start-up.

LD13904

ENVIRO-TEC 9

FORM ET115.24-NOM6 (0521)

08 12 16 20 25 30

125 [57] 131 [60] 160 [73] 167 [76] 231 [105] 236 [107]

42 [19] 53 [24] 59 [27] 73 [33] 91 [41] 91 [41]

42 [19] 42 [19] 42 [19] 50 [23] 55 [25] 55 [25]

35 [16] 37 [17] 49 [22] 53 [24] 76 [35] 80 [36]

22 [10] 26 [12] 35 [16] 38 [17] 76 [35] 76 [35]

29 [13] 30 [14] 33 [15] 35 [16] 44 [20] 44 [20]

1 ROW - DRY 12 [5] 14 [6] 17 [8] 21 [10] 23 [10] 27 [12]

1 ROW - WET 14 [6] 17 [8] 21 [10] 26 [12] 28 [13] 34 [15]

2 ROW - DRY 17 [8] 21 [10] 26 [12] 32 [15] 37 [17] 43 [20]

2 ROW - WET 21 [10] 27 [12] 33 [15] 42 [19] 48 [22] 56 [25]

4 ROW - DRY 29 [13] 36 [16] 45 [20] 57 [26] 65 [30] 76 [35]

4 ROW - WET 37 [17] 47 [21] 58 [26] 75 [34] 86 [39] 101 [46]

6 ROW - DRY 40 [18] 51 [23] 64 [29] 81 [37] 93 [42] 109 [50]

6 ROW - WET 52 [24] 66 [30] 84 [38] 109 [50] 124 [56] 146 [66]

COIL ROWS

COMPONENT

UNIT SIZE

BASIC UNIT

DAMPER SECTION

BLOW THRU ELECTRIC HEATER

DISCHARGE COIL SECTION

SUPPLY PLENUM

RETURN PLENUM (VB)

NOTES:

1.Unit weight data is shipping weight in pounds (kilograms).

2.Discharge section includes a 2 row coil.

1/3 1/2 3/4 1 1 1/2 2 3

SINGLE PHASE 37 [17] 37 [17] 45 [20] 47 [21] -- -- --

THREE PHASE 34 [15] 34 [15] 40 [18] 43 [20] 46 [21] 53 [24] 81 [37]

MOTOR HP

TYPE

115/1 208/1 230/1 277/1 208/3 230/3 460/3 575/3

1/3 6.3 3.5 3.2 2.6 1.7 1.5 0.8 -

1/2 7.8 4.3 3.9 3.6 2.2 2.1 1.1 0.9

3/4 10.6 5.4 5.3 5.0 3.2 3.0 1.5 1.2

115.0 8.3 7.5 5.5 4.0 3.6 1.8 1.4

- - - - 5.3 5.0 2.5 1.9

2- - - - 7.0 6.4 3.2 2.5

3- - - - 9.1 9.0 4.5 3.2

MAXIMUM MOTOR AMPERAGE

HORSEPOWER

VOLTAGE

1-1/2

NOTES:

1. AMPs shown above are NEC full load AMPs for standard motor. Actual motor nameplate AMPs may vary.

2. Consult factory for applications requiring special motors.

MOTOR ELECTRICAL DATA

UNIT WEIGHT DATA

MOTOR/DRIVE WEIGHT DATA

LD13905

ENVIRO-TEC

FORM ET115.24-NOM6 (0521)

Standard Rotation

Arrangement 2

Reverse Rotation

Arrangement 1 Horizontal Rear Discharge

Arrangement 7

Reverse Rotation

Arrangement 1 Horizontal Rear Discharge

Arrangement 7

NOTES:

1.Refer to Dimensional Data for unit dimensions.

2.Fan arrangements are also available with inlet damper section (Model VR) and return plenum section (Model VB).

3.Side access filter rack standard on arrangement 7 (Model VR).

4.Discharge heating coil section and supply plenum are not available with arrangement 7.

5.All drawings subject to change without prior notice. Refer to www.enviro-tec.com for current submittal drawings.

Standard Rotation

Arrangement 2

MODEL VB ARRANGEMENTS

MODEL VR ARRANGEMENTS

LD13906

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