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EATURES AND

ENEFITS

• CFR

©May, 2006 Environmental Technologies, Inc.

• CFR Catalog

For the Contractor:

C O N V E N I E N C E

Quality.

All CFR terminals are thor-

oughly inspected during each step

of the manufacturing process,

including a comprehensive “pre-ship”

inspection, to assure the highest qual-

ity product available. Each unit is

also “run tested” before leaving the

factory to ensure trouble free field

“start-up.”

Quick Installation.

A standard

single point electrical main power

connection is provided. Electron-

ic controls and electrical

components are located on the

same side of the casing for quick

access, adjustment, and trou-

bleshooting. Installation time is

minimized with the availability of

factory calibrated ENVIRO-TEC

controls.

Finite fan speed adjustment is

accomplished with an electronic SCR

controller. The SCR fan speed con-

troller is manufactured by

ENVIRO-TEC

and is compatible

with the fan motor. This minimizes

electronic interference and har-

monic distortion that occurs from

non-compatible motor and SCR

components. Increased motor life

and efficiency result from the

compatible design.

CFR terminals utilize three tap

motors that accommodate a broad

range of flow and static pressure

field conditions while dramatical-

ly increasing efficiency.

The FlowStar

sensor ensures accu-

rate airflow measurement, regardless

of the field installation conditions.

A calibration label and wiring dia-

gram is located on the terminal for

quick reference during start-up.

The terminal is constructed to

allow installation with standard

metal hanging straps. Optional

hanger brackets for use with all-

thread support rods or wire hangers

are also available.

For the Owner:

V A L U E A N D S E C U R I T Y

Quality.

All metal components are

fabricated from galvanized steel.

Unlike most manufacturers’ ter-

minals, the steel used in the CFR

is capable of withstanding a 125

hour salt spray test without show-

ing any evidence of red rust.

Energy Efficiency.

In addition to

quiet and accurate temperature con-

trol, the building owner will benefit

from lower operating costs. The

highly amplified velocity pressure

signal from the FlowStar

inlet sen-

sor allows precise airflow control

at low air velocities.

The FlowStar

sensor’s airfoil shape

provides minimal pressure drop

across the terminal. This allows the

central fan to run at a lower pres-

sure and with less brake horsepower.

Energy efficient three tap, three

winding, permanent split capaci-

tor fan motors are manufactured

to ensure efficient, quiet, reliable,

and low maintenance operation.

Three tap motors provide superi-

or energy efficiency over single

speed motors by delivering three

separate horsepower outputs. For

example, a nominal 1/2 HP motor

delivers 1/3 HP on medium tap and

1/4 HP on low tap. This allows

the motor to operate at a higher

efficiency when at a reduced fan

capacity.

Fan terminals that utilize a single

speed motor must rely solely on an

SCR controller to obtain the reduc-

tion in fan capacity. At minimum

turndown, they suffer from exces-

sive power consumption and high

motor winding temperatures, sig-

nificantly reducing the motor life.

As an option, Model CFR is avail-

able with an ECM™ fan motor,

providing efficiency ratings between

70% and 80% for most applications.

Agency Certification.

Model CFR

terminals, including those with

electric heat, are listed with ETL as

an assembly, and bear the ETL

label.

CFR terminals comply with applic-

able NEC requirements, are tested

in accordance with ARI Standard

880, and are certified by ARI.

Maintenance and Service.

CFR fan

terminals require no periodic main-

tenance other than optional filter

replacement. If component replace-

ment becomes necessary, the unit

is designed to minimize field labor.

The bottom casing panels can be

removed to provide easy access to

the fan assembly, and the motor

electrical leads are easily unplugged.

Controls.

Model CFR terminals are

available with analog electronic, con-

signment DDC, and pneumatic

controls. ENVIRO-TEC

manufac-

tures a complete line of analog

electronic controls specifically

designed for use with CFR termi-

nals. These controls are designed

to accommodate a multitude of

control schemes.

From the most basic to the most

sophisticated sequence of opera-

tion, the controls are designed by

experts in VAV terminal operation.

Refer to the Electronic Controls

Selection Guide, and the Pneu-

matic Controls Selection Guide for

a complete description of the

sequences and schematic drawings

that are available.

Standard features include the

patented FlowStar

airflow sensor,

ETL Listing, NEMA 1 enclosure, 24

volt control transformer, floating

modulating actuator, brass bal-

ancing tees and plenum rated

tubing.

Содержание CFR

Страница 1: ...December 2005 Part No PX 00 0005 ...

Страница 2: ...ly dominate the space sound level The CFR also minimizes the fluctuation in sound levels that occur during VAV damper modu lation For the Building Designer F L E X I B I L I T Y Selection and Layout The CFR pro vides flexibility in system design Reduced noise at the fan terminal allows the system designer to place properly sized units directly above occupied spaces It is not neces sary to use the ...

Страница 3: ...oil shape provides minimal pressure drop across the terminal This allows the central fan to run at a lower pres sure and with less brake horsepower Energy efficient three tap three winding permanent split capaci tor fan motors are manufactured to ensure efficient quiet reliable and low maintenance operation Three tap motors provide superi or energy efficiency over single speed motors by delivering...

Страница 4: ... skin dual density insulation complying with UL 181 and NFPA 90A Fan assembly utilizes a forward curved dynamically balanced galvanized wheel with a direct drive motor Electrical devices installed within a NEMA 1enclosure with single point power connection Optional Construction Features ECM fan motor Mounting brackets to accept all thread hanging rods or wire hangers Double wall construction Scrim...

Страница 5: ...ould have minimum CFM s that are well over 50 higher than an ENVIRO TEC terminal Many air flow sensors provide some degree of amplification simply due to the decrease in free area of the inlet from large area of the sensor These VAV terminals still require minimum CFM s up to 30 high er than an ENVIRO TEC terminal have higher sound levels and higher pressure drop requiring additional energy consum...

Страница 6: ...nstalled This allows a straight for ward comparison of sound performance between equipment manufacturers and unit models Noise Criteria NC The bottom line acoustical criteria for most projects is the NC Noise Criteria level This NC level is derived from resulting sound pressure levels in the zone These sound pressure lev els are the effect of acoustical energy sound power levels entering the zone ...

Страница 7: ... more optimally sized units Inlet duct that is the same size as the inlet collar and as straight as pos sible will achieve the best acoustical performance For critical applica tions flexible duct should not be utilized at the terminal inlet Zoning On projects where inter nal lining of the downstream duct is not permitted special consider ations should be made to assure acceptable noise levels will...

Страница 8: ...ize that is matched with the unit fan to deliver 100 cooling capacity for the majority of fan selec tions The larger primary air valve will be used in applications where the system fan is undersized requiring a larger air valve to take advantage of lower pressure losses While help ing in this fashion a penalty is paid by having a higher controllable min imum airflow setpoint than could be achieved...

Страница 9: ...re in w g Max transducer differential pressure in w g Airflow Ranges CFM 1 Minimum and maximum airflow limits are dependent on the specific DDC controller supplied Contact the control vendor to obtain the minimum and maximum differential pressure limits inches W G of the transducer utilized with the DDC controller 2 Maximum CFM is limited to value shown in General Selection Data FlowStar Calibrati...

Страница 10: ... 15 381 13 1 2 343 29 3 8 746 17 432 40 1016 1218 11 7 8 302 8 203 2 1 4 57 3 4 19 6 1 2 165 15 381 13 1 2 343 29 3 8 746 17 432 40 1016 1021 9 7 8 251 8 203 2 1 4 57 3 4 19 6 1 2 165 15 381 13 1 2 343 29 3 8 746 17 432 40 1016 1221 11 7 8 302 8 203 2 1 4 57 3 4 19 6 1 2 165 15 381 13 1 2 343 29 3 8 746 17 432 40 1016 1421 13 7 8 352 9 229 2 1 4 57 3 4 19 6 1 2 165 15 381 13 1 2 343 29 3 8 746 17 ...

Страница 11: ... K M 04 10 254 12 305 10 254 3 76 06 11 10 254 16 406 12 1 2 318 1 2 13 18 21 10 254 22 559 12 1 2 318 1 2 13 24 10 254 28 711 17 1 2 445 1 2 13 30 40 6 152 40 1016 17 1 2 445 9 3 4 248 44 6 152 44 1118 17 1 2 445 5 3 4 146 Fan Sizes 04 06 11 18 21 and 24 NOTE All dimensions are in inches mm Drawings are not to scale and not for submittal or installation purposes Refer to www enviro tec com for cu...

Страница 12: ... 27 30 36 800 0 19 0 90 31 32 39 1000 0 30 0 88 23 35 36 42 600 0 02 0 90 26 28 38 800 0 04 0 90 27 31 39 1000 0 06 0 88 23 30 33 40 1200 0 08 0 82 26 33 36 43 1400 0 11 0 75 30 38 40 46 1600 0 15 0 59 33 41 43 48 800 0 02 0 90 30 32 40 1000 0 03 0 88 23 32 36 41 1200 0 05 0 82 26 36 39 43 1400 0 06 0 75 30 39 41 46 1600 0 07 0 59 33 42 45 50 1800 0 09 0 40 35 45 47 51 800 0 06 0 90 26 31 38 1000 ...

Страница 13: ...E 1224 1424 1230 1844 17 8 1 0 2 3 4 2 1 2 2 277V FAN HP 9 0 7 6 6 8 24 6 22 0 3 4 2 18 8 1 3 2 HORSEPOWER AMPERAGE DATA 21 0 7 2 7 4 8 6 AMPERAGE 115V 1 3 2 1 4 2 208V 1 2 2 19 2 18 6 17 6 1 2 2 20 6 1440 1640 1644 1844 1630 1224 1424 1230 1430 INLET Δ ΔPs MIN ΔPs IN W G RADIATED UNIT SIZE CFM MAX E S P IN W G ROOM NOISE CRITERIA NC FAN ONLY 4 5 7 2 5 8 5 6 11 0 12 3 3 4 3 8 1 8 2 8 5 3 1 2 3 4 1...

Страница 14: ... 65 57 51 49 400 59 53 52 46 43 41 59 55 50 44 33 29 61 58 54 46 40 37 65 62 60 54 49 47 500 61 55 55 50 48 47 62 59 54 48 38 33 63 62 58 49 42 39 68 65 62 56 50 48 400 59 53 52 46 43 41 56 52 46 38 32 32 58 55 50 43 37 37 62 59 58 53 47 47 500 61 55 55 50 48 47 58 55 48 40 33 33 61 58 52 45 39 38 65 62 60 55 48 48 600 63 57 59 54 52 52 60 58 51 43 35 35 63 61 54 47 40 39 67 65 62 56 49 49 800 66 ...

Страница 15: ...0 68 69 65 61 61 61 69 66 57 50 42 38 71 67 59 51 43 39 77 71 66 56 46 43 2700 71 71 69 65 65 65 72 69 60 53 45 41 74 69 62 54 48 44 79 73 67 58 51 48 3100 74 74 72 70 70 70 76 71 63 56 49 46 76 72 64 57 50 46 82 76 69 60 53 50 1500 62 63 57 52 52 49 62 60 49 42 34 31 64 61 52 45 40 37 72 67 62 53 49 48 1900 65 66 62 57 57 56 67 62 54 46 35 32 69 64 56 48 42 38 74 69 63 54 50 49 2300 68 69 65 61 6...

Страница 16: ...it fan should not be energized prior to realizing this minimum external static pressure NOTE Terminals equipped with a hot water heating coil require the addition of the coil pressure drop to the specified external static pressure before making the fan selection UNIT SIZES 0506 0606 0806 UNIT SIZES 0611 0811 1011 E S P IN W G E S P IN W G Airflow CFM Standard Density Air Airflow CFM Standard Densi...

Страница 17: ... 5 0 6 0 7 0 8 0 9 1 0 1 1 2400 2600 2800 3000 3200 3400 3600 3800 4000 4200 4400 4600 4800 HI TAP MED TAP LOW TAP UNIT SIZES 1644 1844 E S P IN W G Airflow CFM Standard Density Air 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 0 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 3800 4000 4200 HI TAP MED TAP LOW TAP UNIT SIZES 1440 1640 E S P IN W G Airflow CFM Standard Density Air 0 0 0 1 0 2 0 ...

Страница 18: ... the varying static pressure requirements associated with different downstream duct configurations This feature should not preclude the final field air balance verification process during the commissioning stage of a project An electronic PWM speed control device is provided to allow field changes of the fan capacity as the need arises Fan volume can be field calibrated in two fashions First a pot...

Страница 19: ...her the current is drawn in pulses at the peaks of the AC voltage This pul sating current includes high frequency components called harmonics Harmonic currents circulate on the delta side of a Delta Wye distribution transformer On the Wye side of the transformer these harmonic currents are additive on the neutral conductor A transformer used in this type of appli cation must be sized to carry the ...

Страница 20: ...ly be made in the non shaded areas The minimum external static pressure requirement is shown for each fan assembly The unit fan should not be energized prior to realizing this minimum external static pres sure Terminals equipped with a hot water heating coil require the addition of the coil pressure drop to the specified external static pressure before making the fan selection UNIT SIZES 0611 0811...

Страница 21: ...6 55 77 75 74 75 73 73 1221 1600 2100 1055 0 07 0 10 73 69 62 57 52 52 80 78 69 61 56 55 77 75 74 75 73 73 1421 2100 2100 1055 0 14 0 10 73 69 62 57 52 52 80 78 69 61 56 55 77 75 74 75 73 73 1224 1600 2600 1060 0 08 0 20 74 72 64 58 55 55 80 80 70 62 56 53 80 77 75 77 75 74 1424 2100 2600 1060 0 11 0 20 74 72 64 58 55 55 80 80 70 62 56 53 80 77 75 77 75 74 1230 1600 2800 960 0 07 0 20 72 69 61 55 ...

Страница 22: ...umber of steps etc Contact your ENVIRO TEC representative or refer to the ENVIRO TEC Windows based computer selection program for design assistance Heaters require a minimum of 0 07 w g downstream static pressure to ensure proper operation For optimum diffuser performance in overhead heating applications the supply air temperature should be with in 20 F of the desired space temperature This typica...

Страница 23: ...nute GPM Water Capacity Gallons per Minute MBH 1 000 BTUH BTUH Coil Heating Capacity British Thermal Units per Hour Δ ΔT EWT minus EAT Selection Procedure Hot Water Coil Performance Tables are based upon a tem perature difference of 115 F between entering water and entering air If this ΔT is suitable proceed directly to the performance tables for selection All pertinent perfor mance data is tabula...

Страница 24: ... 5 149 2 136 2 7 5 10 7 1 1 0 0 3 105 2 125 1 162 1 153 3 8 7 13 0 2 3 5 1 0 108 9 132 2 170 2 165 1 9 5 14 6 3 7 5 2 1 110 3 135 0 173 3 169 6 9 8 15 2 4 12 7 3 5 111 0 136 5 174 9 172 0 10 0 15 5 5 5 3 137 4 173 5 15 7 0 5 0 3 0 1 95 4 108 2 146 3 132 3 8 2 11 7 1 1 0 0 3 100 9 118 8 160 1 150 1 9 7 14 6 2 3 5 1 0 104 5 126 3 169 0 163 0 10 7 16 6 3 7 5 2 1 106 0 129 3 172 4 168 1 11 1 17 4 4 12...

Страница 25: ...31 2 4 15 5 4 4 102 7 124 8 169 5 163 4 20 4 32 4 5 6 6 126 2 166 4 33 1 0 5 0 4 0 1 86 2 93 3 123 7 105 3 13 8 18 4 1 1 2 0 4 92 2 104 6 143 8 127 5 17 7 25 7 2 4 4 1 2 96 6 113 9 158 9 147 5 20 6 31 8 3 9 2 2 6 98 5 117 9 165 1 156 5 21 7 34 4 4 15 5 4 4 99 5 120 2 168 5 161 6 22 4 35 9 5 6 6 121 6 164 9 36 8 0 5 0 4 0 1 84 0 90 1 121 2 102 8 14 4 19 0 1 1 2 0 4 89 7 100 8 141 7 124 7 18 7 27 1 ...

Страница 26: ... 7 143 7 125 7 35 5 53 2 3 10 3 2 9 87 5 100 2 153 4 138 5 38 9 61 0 4 17 4 4 9 88 6 102 9 159 0 146 4 40 9 65 7 5 7 4 104 7 151 8 68 8 0 5 0 4 0 1 75 2 77 3 99 0 82 8 19 9 24 0 1 1 4 0 4 79 8 85 0 121 0 100 9 28 9 38 9 2 4 9 1 4 84 0 93 3 142 2 123 7 37 0 55 2 3 10 3 2 9 85 9 97 7 152 2 136 6 40 8 63 7 4 17 4 4 9 87 0 100 3 158 0 144 8 42 9 68 9 5 7 4 102 1 150 3 72 4 0 5 0 4 0 1 74 4 76 2 97 7 8...

Страница 27: ...112 3 147 7 131 2 47 3 71 7 4 24 5 7 0 97 8 115 9 154 5 140 6 49 8 77 2 5 10 5 118 3 146 9 80 8 0 5 0 6 0 2 78 3 80 2 86 7 73 1 23 0 26 4 1 2 0 0 6 85 0 90 9 109 6 89 0 34 6 44 9 2 7 1 2 0 91 1 102 7 133 8 113 5 45 2 65 4 3 14 6 4 2 93 9 108 8 145 8 128 4 50 1 75 9 4 24 5 7 0 95 6 112 4 152 9 138 0 53 0 82 2 5 10 5 114 8 144 7 86 3 0 5 0 6 0 2 77 0 78 7 85 1 72 2 23 4 26 6 1 2 0 0 6 83 3 88 5 107 ...

Страница 28: ... 2 89 3 100 3 131 6 110 0 71 1 103 2 4 29 9 8 6 91 3 104 5 140 8 121 1 76 8 115 5 5 12 8 107 4 129 4 124 1 0 5 0 7 0 1 73 4 73 9 73 6 66 8 26 3 28 0 1 2 5 0 7 79 0 81 6 90 8 74 5 44 0 52 1 2 8 7 2 5 85 1 92 2 115 7 93 4 63 1 85 4 3 17 9 5 2 88 2 98 6 130 3 108 5 73 0 105 5 4 29 9 8 6 90 2 102 8 139 6 119 6 79 0 118 6 5 12 8 105 7 127 9 127 8 0 5 0 7 0 1 72 4 72 8 72 6 66 5 26 5 28 1 1 2 6 0 7 77 6...

Страница 29: ... 7 136 3 5 13 8 99 4 119 3 149 0 0 5 0 8 0 1 70 7 70 9 69 8 65 8 27 3 28 3 1 2 7 0 8 75 1 76 4 82 8 70 2 48 0 54 3 2 9 3 2 7 80 3 84 8 105 7 84 3 73 1 94 4 3 19 2 5 6 83 3 90 5 120 9 97 8 87 1 121 5 4 32 1 9 3 85 1 94 4 131 1 108 7 95 9 140 3 5 13 9 97 3 117 3 153 9 0 5 0 8 0 1 70 5 70 7 69 5 65 7 27 3 28 3 1 2 7 0 8 74 7 75 9 82 2 69 9 48 3 54 4 2 9 4 2 7 79 8 84 1 104 9 83 7 73 9 95 1 3 19 2 5 6...

Страница 30: ...ctured of a low thermal conducting composite mate rial and include a molded damper position indicator visible from the exterior of the unit The damper shall pivot in self lubricating bearings The damper actuator shall be mounted on the exterior of the terminal for ease of service The valve assembly shall include internal mechanical stops for both full open and closed positions The damper blade sea...

Страница 31: ...ently lubricated ball bearings Motor shall maintain minimum 70 efficiency over the entire operating range Motor speed control shall be accomplished through a PWM pulse width modulation controller specifi cally designed for compatibility with the ECM The speed controller shall have terminals for field verification of fan capacity utilizing a digital volt meter A calibration graph shall be supplied ...

Страница 32: ...liance NEMA 1 wiring enclosure Electric Heat ETL listed as an assembly for safety compliance per UL 1995 Integral electric heat assembly Automatic reset primary and back up secondary thermal limits Single point power connection Hinged electrical enclosure door Fusing per NEC OPTIONAL FEATURES Construction 20 gauge galvanized steel construction 1 insulation Foil faced scrim backed insulation Double...

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