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3

CAC Cassette Evaporator

  

STANDARD FEATURES

Continued

PRODUCT DESCRIPTION

The  EMI AmericaSeries  Cassette 

Evaporator  is  available  in  three  cabinet 

sizes with six cooling output capacities from 

9,000-36,000 Btuh in DX refrigeration. Key 

features include a condensate pump with 

safety switch and a 36” lift*; electric heat 

is a factory installed option ONLY 

(there 

are no field installed electric heat kits 

available);

 fresh air inlet and branch duct 

knockouts; and motorized air vanes (18-36 

only). The CAC accepts a 24 Volt thermo-

stat control (thermostat not included). De-

signed for low noise levels, easy installation 

and maintenance and a slim line fascia, all 

ensure minimum intrusion into the working 

environment. 
Due  to  ongoing  product  development,  all 

designs  and  specifications  are  subject  to 

change without notice. 

* Condensate pump lift measured from the 

base or bottom of the unit.

This American-made CAC Cassette 

Evaporator produces system SEER’s meet-

ing  or  exceeding  13,  when  matched  with 

EMI’s S1C single zone or S2C dual zone 

side  discharge  condensing  units  or  with 

T2C, T3C, or T4C top discharge multi-zone 

condensing  units.  Refer  to  specifications 

contained in this document.

All EMI Air Handlers are backed by 

Enviromaster  International  LLC  and  are 

tested  and  rated  in  accordance  with ARI 

standards 210/240 and UL 1995.

  

STANDARD FEATURES

Materials  of  Construction  - 

Galva-

nized  steel  cabinet  with  fire-resistant 

thermal and acoustic foam insulation and 

light grey high-impact ABS fascia. A Styro-

foam drain pan with a tough fire retardant 

thermoplastic liner.

Air Systems:

•  Fans  are  backward  curved  impeller 

centrifugal  design;  dynamically  and 

statically  balanced;  and  mounted  on 

integral mounting rails.

•  Single  Fan  models  (09-24)  designed 

with fire retardant plastic or aluminum 

impellers.

• Twin Fan models (30-36) designed with 

fire retardant plastic impellers.

•  Motors  are  multispeed,  enclosed  type 

with thermal protection and sealed life-

time bearings.

•  Permanent,  washable  filter  (user  ac-

cessible).

• Branch duct knockouts on two sides for 

remote discharge locations.

• Fresh air intake capability on three sides 

of cabinet (2 on CAC 09-12).

• Four plastic air vanes; motor driven with 

auto sweep or fixed position stop setting 

on models 18-36 (models 09-12 equipped 

with manually adjusted air vanes).

Coil - 

Coil is seamless, copper tubing, 

arranged in staggered configuration, with 

enhanced  aluminum  fins,  tested  to  600 

psig. The tubes are mechanically expanded 

for secure bonding to fin shoulder.

 

Refrigeration  Circuit  - 

Units  are 

equipped  with  a  serviceable  fixed  orifice 

expansion device.

Controls  and  Components 

(factory 

installed or supplied):

• Connections for 24V remote wall ther-

mostat.

•  Custom  control  board  featuring  anti-

short cycle timer; 60 second post purge 

fan relay; and on board 30 amp electric 

heat relay.

• Relays and connectors to condensing unit.

• Condensate Pump with 36” lift – mea-

sured from base of unit.

• 24V Transformer.

System Options:

• 24V remote wall thermostat.

• Electric Heat (@ 230V)

1.5KW (9,000-12,000 Btuh)

3KW (18,000-24,000 Btuh)

5KW (30,000-36,000 Btuh)

Содержание CAC

Страница 1: ...6 Enviromaster International LLC 5780 Success Dr Rome NY 13440 www enviromaster com INSTALLATION OPERATION AND MAINTENANCE MANUAL An ISO 9001 2000 Certi ed Company CAC 9 12 Model Shown STRAIGHT COOL N...

Страница 2: ...ricaSeries evaporator must be connected only to a properly grounded electrical supply Do not fail to properly ground this unit Turn off the electrical supply before servicing the EMI AmericaSeries eva...

Страница 3: ...ire resistant thermal and acoustic foam insulation and light grey high impact ABS fascia A Styro foam drain pan with a tough re retardant thermoplastic liner Air Systems Fans are backward curved impel...

Страница 4: ...blanked off DO NOT throw the two polystyrene blanking off pieces out with packaging Electromechanical Operation Stan dard An optional thermostat can be ob tained through EMI or your local distributor...

Страница 5: ...e positioned in the fascia discharge slots to direct the air to the ducts Blanking Off Pieces Small Unit Shown Shown The large units have three hinged grills and three lters Medium Unit Shown Large Un...

Страница 6: ...the CAC Di mensions section in the back of this IOM for cabinet sizing Small Cabinet Dimension A 12 min Medium Cabinet DimensionA 11 min Large Cabinet Dimension A 13 min Dimension A 1 minimum space a...

Страница 7: ...iling will have to be cut to the following sizes Small cabinet 23 x 23 Medium cabinet 33 x 33 Large cabinet 46 x 33 NOTE Make sure the ceiling grid is supported separately from the Cas sette The ceili...

Страница 8: ...not pro trude more than 2 below the mounting bracket 2 MAX NOTE If the ceiling is not level or even it is important that the Cas sette is installed level to ensure cor rect pump operation and to main...

Страница 9: ...to the unit as possible This prevents a large volume of water draining back into the unit when it is switched off NOTE There is a check valve at the pump discharge to prevent water from draining back...

Страница 10: ...pes should be insulated right up to the Cassette chassis The CAC is equipped with a Flo Rater Piston Expansion device Connections are sweat type The suction line large must be insulated the entire len...

Страница 11: ...the bolts c Screw the mounting bolt with washer into the chassis leav ing approximately 1 to hang the fascia 4 On 18 36k units connect the vane motor plug by plugging it into the socket con nection on...

Страница 12: ...particularly in low Voltage wir ing The correct cable size must be used to ensure a Voltage drop of less than 1 Volt in the control wiring Once the refrigeration pipe work is complete the electrical...

Страница 13: ...onnector location terminal block L1 L2 Low Volt Interconnect Wiring Refer to the wiring diagram to connect the low Volt wiring to the appropriate terminals The wiring diagram located on the inside of...

Страница 14: ...f via the toggle switch on the side of the electri cal box Toggle Switch NOTE Apply power to the Condens ing Unit s crankcase heater for 24 hours before start up to boil off any liquid that may be pre...

Страница 15: ...re 4 ly with condensate pump energized If water does not check the pipe slope or see if there are any pipe restrictions 8 Ensure that all covers panels and l ters are in place and discharge louvers ar...

Страница 16: ...nds of tubing and insert into ttings 2 Protect the valves by wrapping with a wet rag heat sink before brazing 3 We recommend the use of a shield can be made from some scrap metal to protect the paint...

Страница 17: ...36 56 oz 90 oz R 22 8 Charge to proper weight charge based on your feet of interconnect see below NOTE Charging should be done with a dial a charge or weighed in with a scale TOP DISCHARGE REFRIGERANT...

Страница 18: ...at has been satis ed the purge feature al lows the indoor fan to remain on for an additional 60 seconds This increases ef ciency by pulling the remaining energy from the unit Cooling Operation The ele...

Страница 19: ...it Performance Data Date Model Number Technician Serial Number Mode Cooling Indoor Section Notes Evaporator Entering Air DB Evaporator Entering Air WB Evaporator Leaving Air DB Evaporator Leaving Air...

Страница 20: ...r by sliding under retainer clips 5 Or use a garden hose Remove the grille and lter and hose off Let lter s and grille s dry before replacing Turn the POWER OFF to the unit be fore servicing or cleani...

Страница 21: ...tdoor unit are to be independently connected to the electri cal service panel and protected by sepa rate time delay fuse or HACR breakers See the unit name plate for the correct breaker type and size...

Страница 22: ...r condenser from short cycling After the thermostat is satis ed there will be a three minute delay before the condenser is allowed to re start Electric Heat Units with electric heat utilize a control...

Страница 23: ...sate pump with a high level safety switch If the condensate reaches a critical level or if power is lost to the indoor unit the safety cir cuit will open and low Volt power to the condenser terminal Y...

Страница 24: ...program all designs and speci cations are subject to change without notice INDOOR SOUND LEVELS dBa Model High Speed Medium Speed Low Speed 09 12 41 39 39 18 24 44 42 39 30 36 51 49 44 DISCHARGE AIR VO...

Страница 25: ...rator C D E F Control Box Small Cabinet CAC 9 000 12 000 CAC CASSETTE DIMENSIONS FEATURE QTY SIZE A Optional Discharge Knockout 3 3 B Fresh Air Inlet Knockout 2 1 x 2 C Condensate Discharge 1 D Suctio...

Страница 26: ...0 24 000 CAC CASSETTE DIMENSIONS FEATURE QTY SIZE A Optional Discharge Knockout 3 3 B Fresh Air Inlet Knockout 3 3 x 3 C Condensate Discharge 1 D Suction 1 E Liquid 1 F Condensate Pump Access 1 Contro...

Страница 27: ...36 000 CAC CASSETTE DIMENSIONS FEATURE QTY SIZE A Optional Discharge Knockout 3 3 B Fresh Air Inlet Knockout 3 3 x 3 C Condensate Discharge 1 D Suction 1 E Liquid 1 F Condensate Pump Access 1 B Contr...

Страница 28: ...74 22 7 197 28 3 30 S1C Side Discharge CAC CASSETTE SYSTEM MATCHES CAC CAC ELECTRICAL SPECIFICATIONS NOTE Due to EMI s ongoing product development program all designs and speci cations are subject to...

Страница 29: ...94 40 600 13 0 82 11 7 R22 CACA12 T3CA999 27 000 13 0 87 11 8 R22 CACA12 T3CA222 36 000 13 0 76 11 8 R22 CACA12 CACA24 T3CA928 39 000 13 0 80 11 7 R22 CACA12 CACA24 T3CA924 43 600 13 0 79 11 7 R22 CAC...

Страница 30: ...by others Failure to start due to Voltage conditions blown fuses open circuit breakers or other damages due to the inadequacy or interruption of electrical service Damage or repairs needed as a conseq...

Страница 31: ...EFFICIENCY PRODUCT LINE EVAPORATORS CONDENSERS S1C S1H Single Zone Side Discharge S2C Dual Zone Side Discharge T2C T3C T4C 2 3 4 Zone Top Discharge WLC WLH High Wall Evaporator CAC Cassette Evaporato...

Страница 32: ......

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