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JOHNSON CONTROLS

8

FORM 115.20-NOM6 (1106)

Drain Piping

Condensate drain lines must be installed with adequate 

slope away from the unit to assure positive drainage.  

Since the drain pan is located on the suction side of 

the blower, a negative pressure exists at the drain pan 

and a minimum trap of 1-1/2" must be provided in the 

drain line to assure proper drainage.

Drain connections, primary and secondary, are 3/4" 

MPT

 (see Fig. 5 for details).

On units with plastic drain pans the 

drain connections must be made hand 

tight only.

INSTALLATION

FIG. 5 – CWE SERIES WALL / CLOSET FAN COILS  

Chilled Water with Electric Heat

CONDENSATE DRAIN CONNECTIONS

(With drain cover removed)
(Thermoplastic pan shown)

LD12278

Summary of Contents for YCW

Page 1: ...mance and or a possible hazardous safety condition to service personnel and occupants Company employees and or contractors are not authorized to waive this warning Notes 1 For proper operation control valve must be normally closed 2 Aquastats provided where required 3 Electric Heat is available as an option MODELS YCW SERIES YCW Series 2 pipe 4 pipe or 2 pipe cooling with electric heat LD11554 LD1...

Page 2: ...HILLED WATER LINES 5 8 OD COPPER STUBOUTS HOT WATER RETURN HOT WATER SUPPLY FIG 1 UNIT NOMENCLATURE LD11557A LD11698A CABINET DIMENSIONS INCHES A B C D E F FILTER SIZE COIL CONN OD SWEAT HW CW YCW 22 1 8 15 1 8 40 14 10 1 2 3 5 8 18 X 18 5 8 YCW HW 22 1 8 15 1 8 43 18 12 1 2 3 5 8 18 X 18 5 8 5 8 YCWE 22 1 8 15 1 8 40 14 10 1 2 3 5 8 18 X 18 5 8 10 YCW 31 CFM 100 s 3 4 6 8 10 12 Unit Style YCW 2 p...

Page 3: ...provided with 2 coils with single end sheets cooling connections are on the top panel right side and the hot water connec tions are on the top panel middle front This unit is designed to be installed vertically in the upflow position and can be installed on a closet plat If damage is found a claim should be filed against the carrier immediately form platform not provided hung on a closet wall use wa...

Page 4: ... POWER SUPPLY WIRING WALL PANEL FRAME HOT WATER OUTLET HOT WATER INLET DRY WALL 2 X 4 WALL STUD CW UNITS CHILLED WATER CONNECTION Note Front edge of unit to be flush with dry wall CROSS MEMBER ON EDGE 2 X 4 WALL STUD WALL PANEL FRAME SCREW DETAIL OF WALL PANEL FRAME INSTALLATION DRY WALL LD11695A TABLE 1 DRYWALL OPENINGS MODEL NUMBER DRYWALL CUTOUT DIM HT x WD 3YWC 28 x 42 4YWC 28 x 50 6YWC 28 x 5...

Page 5: ...standard 120 volt power wired to a dis connect terminal block and a ground lug Fan motor hi med and low speed leads are wired to the control board There may be an unused motor lead from the motor its needs to be capped off The board is also wired to handle either 24v or 120v control wiring To use 24v remove jumpers on the control board For your 24v hot water control valve wire it in series with th...

Page 6: ... N A N A N A N A N A 2 2 1 5 9 4 8 3 12 11 15 15 3 3 2 3 13 6 11 9 17 15 20 15 4 4 3 0 17 8 15 5 23 20 25 20 5 5 3 8 21 9 19 1 28 24 30 25 6 6 4 5 26 1 22 7 33 29 35 30 8CWE 0 0 0 0 1 7 N A N A N A N A N A 3 3 2 3 14 2 12 5 18 16 20 20 4 4 3 0 18 4 16 1 23 21 25 25 5 5 3 8 22 5 19 7 29 25 30 25 6 6 4 5 26 7 23 5 34 30 35 30 8 8 6 0 35 0 30 5 44 39 50 40 10CWE 0 0 0 0 2 7 N A N A N A N A N A 3 3 2 ...

Page 7: ...eringtobronzeorbrass heatthepiping while in the socket cup and begin introducing the solder when the flux boils rapidly Avoid direct flame into the solder joint Heat can only be applied to the cup of the valve body for a minimal time before damage occurs even with the use of wet rags Avoid rapid quenching of solder joints as this will produce joints of inferior quality Connect all piping per accepte...

Page 8: ...ure exists at the drain pan and a minimum trap of 1 1 2 must be provided in the drain line to assure proper drainage Drain connections primary and secondary are 3 4 MPT see Fig 5 for details On units with plastic drain pans the drain connections must be made hand tight only INSTALLATION FIG 5 CWE SERIES WALL CLOSET FAN COILS Chilled Water with Electric Heat CONDENSATE DRAIN CONNECTIONS With drain ...

Page 9: ...C O thermostat and the TB3 3 TB2 5 jumper is in place the fan will con tinue to operate at the fan speed selected Removing the jumper will cause the fan to shut down when the thermostat is satisfied When using the T200 thermostat the stat will auto matically regulate the fan speed based on the differ ence between the space temp and setpoint 4 F off setpoint the fan will run HI 3 F off setpoint the ...

Page 10: ...e the air and heating capacities of the unit When the filters are excessively dirty the unit heating capacity will be so reduced that it is in effective for heating the room When a room fails to heat always check the filters To ensure proper maintenance of the filters it is best to follow an organized maintenance procedure The following one is recommended Divide the total number of units on the job i...

Page 11: ...11 JOHNSON CONTROLS FORM 115 20 NOM6 1106 This Page Intentionally Left Blank ...

Page 12: ...ture from accumulating in the bearings See Form 50 20 NM3 Long Term Storage Installer has cleaned out interior Ensure drain pan free from foreign material Ensure air filters are clean installed properly and secured Use the directional arrows or other information on the filter to determine the proper flow direction INSTALL CHECKLIST Equipment received as ordered Unit checked for damage interior and ex...

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