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334 

INSTALLATION & OPERATING 

MANUAL 

MHNCCX Fan Coils 1- 3 Tons 

 

  

Figure 7 

                                          

                        

                                                                                                

                                                                                    

 
 
 
 
                                                                                               
 
 
 
 

                                                        

 

 
 
 
 
 
 
 

 

 

 

 
 
 
 
 
 
 
   

INSTRUCTIONS FOR 
INSTALLING FAN COIL 
UNIT INTO ENCLOSURE 
ASSEMBLY  
 

1. Remove the ten screws that 
attach the electrical assembly to 
the fan coil unit. Do not separate 
the electrical assembly from the 
blower assembly. These two 
assemblies will be removed in the 
next step.  

Figure 7 

 
2. Remove the five screws 
attaching the blower assembly to 
the coil assembly. Separate the 
electrical and blower assemblies 
from the coil assembly. 

Figure 8 

 

3. Insert the coil assembly into 
the enclosure assembly starting 
with the discharge air opening of 
the coil first. Ensure that the 
discharge of the coil is inserted 
into the discharge of the 
enclosure completely. Failure to 
completely insert the coil 
discharge will result in 
recirculation of the discharge air. 

Figure 9 

 

   

 

 

     Figure 8 

Figure 9 

Summary of Contents for MHNCCX Series

Page 1: ...318 4 Pipe Heat Cool Fan Coil 12 000 36 000 BTUH Ceiling Concealed MHNCCX DX with Hot Water Heat...

Page 2: ...0 03 MHNCCX 12 03 MHNCCW XX XX MHNCCX 04 01 MHNCCX 04 03 Nominal Tons 01 208 230 1 50 60 03 120 1 50 60 Ceiling Concealed 4 Pipe DX Cool HW Heat MHNCCX 10 01 MHNCCX NOMENCLATURE BREAKDOWN 4 Pipe Heat...

Page 3: ...lvanized steel 3 Contained with the unit shall be all factory wiring piping associated controls and special accessories required prior to start up B Unit Cabinet 1 Composed of heavy gauge galvanized s...

Page 4: ...3 02 Safeties A Fan coil shall contain a non reusable fuse on the secondary voltage side of the transformer Part 4 Operating Characteristics 4 01 Electrical Requirements A Primary electrical power sup...

Page 5: ...2 01 03 10 49 68 21 65 83 6 4 14 2 14 3 8 3 8 5 8 7 8 7 8 3 4 These specifications are subject to change without notice Electrical Data Fuse or HACR Circuit Breaker Per Circuit Model Number Nominal CF...

Page 6: ...25 Latent Fan coils are 13 SEER CFM vs External Static Pressure Table External Static Pressure Model Number 0 05 0 10 0 15 0 20 0 25 0 30 MHNCCX04 397 373 340 320 0 0 MHNCCX06 634 608 578 544 506 463...

Page 7: ...1 00 425 460 500 0 93 0 92 525 0 95 0 94 550 0 98 0 97 580 1 01 1 02 0 91 0 90 600 1 02 1 03 0 92 0 93 630 1 03 1 04 0 94 0 94 650 0 96 0 97 675 0 98 0 99 700 0 99 0 99 750 1 00 1 00 0 93 0 92 775 0 9...

Page 8: ...6 8 29 5 32 2 34 9 37 6 60 400 3 0 7 0 12 0 14 7 17 4 20 1 22 8 25 5 28 2 30 9 33 6 36 3 39 0 MHNCCX 04 HEATING CAPACITIES ENTERING WATER TEMPERATURE F ENTERING AIR F NOMINAL CFM GPM WPD 100 110 120 1...

Page 9: ...1 8 34 4 37 0 39 6 42 2 60 600 3 0 7 6 17 8 20 4 23 0 25 6 28 2 30 8 33 4 36 0 38 6 41 2 43 8 MHNCCX 06 HEATING CAPACITIES ENTERING WATER TEMPERATURE F ENTERING AIR F NOMINAL CFM GPM WPD 100 110 120 1...

Page 10: ...41 9 48 4 52 8 56 5 60 800 4 0 1 9 17 3 21 0 24 7 28 4 33 5 35 8 42 5 46 9 51 5 54 3 58 0 MHNCCX 08 HEATING CAPACITIES ENTERING WATER TEMPERATURE F ENTERING AIR F NOMINAL CFM GPM WPD 100 110 120 130...

Page 11: ...52 2 57 1 62 1 67 0 60 1000 4 0 2 4 22 4 26 8 31 1 35 5 39 8 44 2 50 5 55 5 61 2 65 4 70 3 MHNCCX 10 HEATING CAPACITIES ENTERING WATER TEMPERATURE F ENTERING AIR F NOMINAL CFM GPM WPD 100 110 120 130...

Page 12: ...8 2 64 1 69 4 76 0 60 1200 4 0 2 4 20 6 26 7 32 7 38 7 44 8 50 9 57 1 62 9 69 4 75 1 81 1 MHNCCX 12 HEATING CAPACITIES ENTERING WATER TEMPERATURE F ENTERING AIR F NOMINAL CFM GPM WPD 100 110 120 130 1...

Page 13: ...330...

Page 14: ...with national codes It is the installer s responsibility to install the product in accordance with national codes and or prevailing local codes and regulations Care must be taken to ensure the struct...

Page 15: ...65 MHNCCX06 37 72 34 56 31 41 10 00 5 51 21 65 MHNCCX08 37 72 34 56 31 41 10 00 5 51 21 65 MHNCCX10 43 70 40 55 37 40 10 00 5 51 21 65 MHNCCX12 49 68 46 53 43 38 10 00 5 51 21 65 F E D Hot Water Supp...

Page 16: ...coil frame assembly Four screws per each side of the coils Figure 5 3 Slide the coils out of the fan coil frame assembly toward the coil headers Ensure that care is taken when removing and inserting...

Page 17: ...d in the next step Figure 7 2 Remove the five screws attaching the blower assembly to the coil assembly Separate the electrical and blower assemblies from the coil assembly Figure 8 3 Insert the coil...

Page 18: ...sembly using the five screws previously removed in step 2 figure 8 Figure 11 6 Reinstall the electrical assembly onto the coil assembly using the ten screws previously removed in step 1 figure 7 Figur...

Page 19: ...drain lines have at least one quarter of an inch of fall per foot for proper drainage Figure 14 COIL CONNECTIONS 9 The fan coil unit comes with a manual air bleed and a manual coil drain fitting on t...

Page 20: ...e opening of the hinged service panel Figure 16 17 11 Filters are not supplied with the fan coil unit or the service access panel The filter s must be supplied by the installing contractor If a louver...

Page 21: ...ber Fan Coil Size A in B in C in MAP468L NL 4 43 25 27 5 1 5 MAP468L NL 6 43 25 27 5 1 5 MAP468L NL 8 43 25 27 5 1 5 MAP10L NL 10 49 25 27 5 1 5 MAP12L NL 12 55 25 27 5 1 5 RECOMMENDED FILTER SIZES FA...

Page 22: ...NL 12 6 43 75 Figure 19 12 The fan coil enclosure assembly has a supply air duct flange to allow the attachment of ductwork Ensure when attaching ductwork to the flange that the screws are at least on...

Page 23: ...ordance with local national electrical codes and regulations These electrical connections will include over current protection in the form of fuses or circuit breakers Have your contractor identify la...

Page 24: ...341 MHNCCX xx 01 Wiring Diagram 208 230 1 50 60...

Page 25: ...342 MHNCCX xx 03 Wiring Diagram 120 1 50 60...

Page 26: ...343 MHNCCX CERTIFIED DRAWING...

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