Multiaqua MHNCCX Series User manual

318
4-Pipe Heat / Cool Fan Coil 12,000 - 36,000 BTUH
Ceiling Concealed
MHNCCX DX with Hot Water Heat

Voltage
10 = 2.5 Ton
12 = 3 Ton
319
04 = 1 Ton
06 = 1.5 Ton
08 = 2 Ton
MHNCCX-06-03
MHNCCX-08-03
MHNCCX-10-03
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/Cool Ceiling Concealed Fan Coil
MHNCCX-12-01
MHNCCX-06-01
MHNCCX-08-01
Available Model Numbers

HVAC Guide Specifications
Direct Expansion and Hot Water Fan Coil
4-Pipe
Nominal Size:
12,000 – 36,000 BTUH
Multiaqua Model Number:
MHNCCX04
MHNCCX06
MHNCCX08
MHNCCX10
MHNCCX12
Part 1-General
1.01System Description
Multiaqua DX and Chilled Water Fan Coils are manufactured with heavy gauge galvanized steel to resist
corrosion.
1.02Quality Assurance
A. Certified in accordance with U.L. Standard 95, latest version (U.S.A.)
B. Manufactured in a facility registered to ISO 9002, Manufacturing Quality Standard.
C. Fully load tested at the factory.
D. Damage resistant packaging.
1.03Delivery, Storage and Handling
A. Packaged and readied for shipment from the factory.
B. Controls shall be capable of withstanding 150°F storage temperatures in the control compartment.
C. Stored and handled per manufacturer’s recommendations.
Part 2-Product
2.01 Equipment
A. General:
1. Unit shall be a factory assembled and tested DX and hot water fan coil.
2. Shall be assembled with heavy gauge galvanized 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 steel casing with a baked polyester powder.
2. Shall be internally insulated to insure quiet operation.
C. Fan Motors:
1. Shall be available in 115-1-50/60 and 208/230-1-50/60 vac.
1. Fan motors shall be three speed, direct drive, and PSC type.
2. Totally enclosed.
3. Internal overload protected.
D. Blower Wheels:
1. Blower wheels are forward curved and dynamically balanced.
E. Water Coil:
1. Manufactured with water coils containing 3/8” copper tubing mechanically bonded to aluminum
fins.
2. Contain both a manual water drain and manual air bleed port per coil.
3. Coils shall be factory tested to 350 psig.
4. Coils shall be capable of being field converted from right to left hand connection.
F. Direct Expansion Coil:
1. Manufactured with water coils containing 3/8” copper tubing mechanically bonded to aluminum
fins.
2. Will contain a thermal expansion valve.
3. Coils shall be tested to 350 psig.
4. Coils shall be capable of being field converted from right to left hand connection.
320

G. Drain Pan:
a. All drain pans shall be coated on both the interior and exterior with baked polyester powder to
resist corrosion.
b. The exterior of all drain pans shall be insulated with closed cell to prevent condensation.
c. Pans shall contain a left and right hand primary sloped drain connection as well as a sloped right
hand secondary drain connection.
Part 3-Controls and Safeties
3.01 Controls
A. Fan coils shall be completely factory wired and tested.
B. All components shall be wired to an internal terminal block to allow for a field installed thermostat and or
fan speed control.
C. Controls shall include the following components.
1. 24vac transformer.
2. Fan relays.
3. Optional thermostats.
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 supply shall enter the unit at a single location.
B. Electrical power supply shall be rated to withstand 120°F operating ambient temperatures.
D. Control and high voltage points shall be accessed through terminal block.
Part 5- Accessories:
5.01 Enclosures
A. Fan coils shall be capable of incorporating enclosures.
1. Enclosures shall be internally insulated to insure quite operation and increase efficiency.
2. Shall include knockouts for ease of piping/ electrical in and out of the enclosures.
3. Shall include an optional return air cutout in the enclosure.
4. Shall include a supply air duct flange.
5. Shall incorporate baked polyester powder service access panels with and without a filter louver.
321

322
MHNCCX Product Specifications
Physical Data
Model Number Height
(in) Length (in) Depth (in) Weight (lbs)
DX
Rows
FPI
H/W
Rows
FPI
Copper
Diameter
(in)
Liquid
Line
(in)
Suction
Line
(in)
Water
Inlet
(in)
Water
Outlet
(in)
Drain
(in)
MHNCCX04-01(03) 10 37.72 21.65 66.0 2-14 2-14 3/8 3/8 1/2 5/8 5/8 3/4
MHNCCX06-01(03) 10 37.72 21.65 68.2 3-14 2-14 3/8 3/8 5/8 5/8 5/8 3/4
MHNCCX08-01(03) 10 37.72 21.65 72.6 4-14 2-14 3/8 3/8 5/8 5/8 5/8 3/4
MHNCCX10-01(03) 10 43.7 21.65 74.8 4-14 2-14 3/8 3/8 5/8 7/8 7/8 3/4
MHNCCX12-01(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
CFM Volts/ Phase/ Hertz Motor HP Full Load Ampacity Minimum
Amps Maximum Amps
MHNCCX04-01 208/230-1-50/60 1/8 0.82 1.03 2
MHNCCX04-03 400 120-1-60 1/30
0.55 .69 2
MHNCCX06-01 208/230-1-50/60 1/8 1.18 1.48 3
MHNCCX06-03 600 120-1-60 1/30 0.55 .69 2
MHNCCX08-01 208/230-1-50/60 1/4 1.43 1.79 4
MHNCCX08-03 800 120-1-60 1/30 0.55 .69 2
MHNCCX10-01 208/230-1-50/60 1/4 1.63 2.04 4
MHNCCX10-03 1000 120-1-60 1/8
1.80 2.25 4
MHNCCX12-01 208/230-1-50/60 1/4 1.81 2.26 4
MHNCCX12-03 1200 120-1-60 1/4 3.00 3.75 7

323
MHCCX DX Cooling Performance Data,
CFM vs. ESP and Glycol Adjustment
Model
Number Nominal CFM
Nominal
Cooling
BTUH
MHNCCX04-01 400 12,000
MHNCCX04-03 400 12,000
MHNCCX06-01 600 18,000
MHNCCX06-03 600 18,000
MHNCCX08-01 800 24,000
MHNCCX08-03 800 24,000
MHNCCX10-01 1,000 30,000
MHNCCX10-03 1,000 30,000
MHNCCX12-01 1,200 36,000
MHNCCX12-01 1,200 36,000
* Cooling based on 75 % Sensible and 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
MHNCCX08 757 723 700 659 621 582
MHNCCX10 943 914 880 846 812 769
MHNCCX12 1228 1194 1160 1126 1088 1050
Propylene Glycol/GPM Adjustment Factors
Ambient Propylene GPM Adjustment
Temp Glycol %
Capacity
Reduction = 100% Capacity
26° F 10% x 0.99 x 1.01
20° F 20% x 0.98 x 1.03
8° F 30% x 0.98 x 1.07
-5° F 40% x 0.97 x 1.11
-28° F 50% x 0.96 x 1.16
These specifications are subject to change without notice.

324
MHNCCX Heating Capacity Adjustment Factors
HOT WATER CAPACITY CORRECTION FACTORS
MODEL # MHNCCX04 MHNCCX06 MHNCCX08 MHNCCX10 MHNCCX12
CFM TC SC TC SC TC SC TC SC TC SC
320 0.88 0.86
350 0.90 0.89
375 0.94 0.93
400 1.00 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 0.95 0.93
800 0.96 0.95
850 0.97 0.96
900 0.99 0.98
950 1.00 1.00
1000
1025
1050 0.93 0.93
1100 0.96 0.95
1125 0.97 0.96
1150 0.99 0.98
1200 1.01 1.02
1225 1.03 1.04
These specifications are subject to change without notice.

325
MHNCCX Hot Water Performance Data
MHNCCX-04 HEATING CAPACITIES
ENTERING WATER TEMPERATURE (°F)
ENTERING
AIR (°F) NOMINAL CFM GPM WPD 100° 110° 120° 130° 140° 150° 160° 170° 180° 190° 200°
1.0 1.0 11.2 13.8 16.4 19.0 21.6 24.2 26.8 29.4 32.0 34.6 37.2
2.0 3.4 13.4 16.0 18.6 21.2 23.8 26.4 29.0 31.6 34.2 36.8 39.4
50 400
3.0 7.0 14.8 17.4 20.0 22.6 25.2 27.8 30.4 33.0 35.6 38.2 40.8
MHNCCX-04 HEATING CAPACITIES
ENTERING WATER TEMPERATURE (°F)
ENTERING
AIR (°F) NOMINAL CFM GPM WPD 100° 110° 120° 130° 140° 150° 160° 170° 180° 190° 200°
1.0 1.0 8.4 11.0 13.6 16.2 18.8 21.4 24.0 26.7 29.4 32.1 34.8
2.0 3.4 10.6 13.3 16.0 18.7 21.4 24.1 26.8 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° 130° 140° 150° 160° 170° 180° 190° 200°
1.0 1.0 5.8 8.4 11.0 13.6 15.5 18.1 20.0 22.6 24.5 27.1 29.7
2.0 3.4 7.9 10.6 13.4 16.1 18.9 21.6 24.4 27.1 29.9 32.6 35.3
70 400
3.0 7.0 8.8 11.6 14.4 17.3 20.2 23.0 26.1 28.9 32.0 34.9 37.8
MHNCCX-04 HEATING CAPACITIES
ENTERING WATER TEMPERATURE (°F)
ENTERING
AIR (°F) NOMINAL CFM GPM WPD 100° 110° 120° 130° 140° 150° 160° 170° 180° 190° 200°
1.0 1.0 8.4 5.8 8.4 11.0 12.9 15.5 17.4 20.0 21.9 24.5 27.1
2.0 3.4 10.5 8.0 10.8 13.5 16.3 19.0 21.8 24.5 27.3 30.0 32.7
80 400
3.0 7.0 12.1 9.0 11.8 14.7 17.6 20.4 23.5 26.3 29.4 32.3 35.2
These specifications are subject to change without notice.

326
MHNCCX Hot Water Performance Data
MHNCCX-06 HEATING CAPACITIES
ENTERING WATER TEMPERATURE (°F)
ENTERING
AIR (°F) NOMINAL CFM GPM WPD 100° 110° 120° 130° 140° 150° 160° 170° 180° 190° 200°
1.0 1.1 13.1 17.6 22.1 26.6 31.1 35.6 40.1 44.6 49.1 53.6 58.1
2.0 3.7 17.5 21.7 25.9 30.1 34.3 38.5 42.7 46.9 51.1 55.3 59.5
50 600
3.0 7.6 19.1 23.3 27.5 31.7 35.9 40.1 44.3 48.5 52.7 56.9 61.4
MHNCCX-06 HEATING CAPACITIES
ENTERING WATER TEMPERATURE (°F)
ENTERING
AIR (°F) NOMINAL CFM GPM WPD 100° 110° 120° 130° 140° 150° 160° 170° 180° 190° 200°
1.0 1.1 12.8 15.4 18.0 20.6 23.2 25.8 28.4 31.0 33.6 36.2 38.8
2.0 3.7 16.2 18.8 21.4 24.0 26.6 29.2 31.8 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° 130° 140° 150° 160° 170° 180° 190° 200°
1.0 1.1 7.9 10.5 13.1 15.7 18.3 20.9 23.5 26.1 28.7 31.3 33.9
2.0 3.7 11.7 14.3 16.9 19.5 22.1 24.7 27.3 29.9 32.5 35.1 37.7
70 600
3.0 7.6 13.3 15.9 18.5 21.1 23.7 26.3 28.9 31.5 34.1 36.7 39.3
MHNCCX-06 HEATING CAPACITIES
ENTERING WATER TEMPERATURE (°F)
ENTERING
AIR (°F) NOMINAL CFM GPM WPD 100° 110° 120° 130° 140° 150° 160° 170° 180° 190° 200°
1.0 1.1 3.3 5.9 8.5 11.1 13.7 16.3 18.9 21.5 24.1 26.7 29.3
2.0 3.7 7.1 9.7 12.3 14.9 17.5 20.1 22.7 25.3 27.9 30.5 33.1
80 600
3.0 7.6 8.7 11.3 13.9 16.5 19.1 21.7 24.3 26.9 29.5 32.1 34.7
These specifications are subject to change without notice.

327
MHNCCX Hot Water Performance Data
MHNCCX-08 HEATING CAPACITIES
ENTERING WATER TEMPERATURE (°F)
ENTERING
AIR (°F) NOMINAL CFM GPM WPD 100° 110° 120° 130° 140° 150° 160° 170° 180° 190° 200°
2.0 0.5 16.8 20.5 24.1 27.7 31.4 35.0 39.0 42.4 46.5 49.7 53.3
3.0 1.1 19.2 22.8 26.4 30.0 34.7 37.2 43.2 48.0 51.6 55.2 58.8
50 800
4.0 1.9
20.5 24.2 27.9 31.6 36.7 39.0 45.7 50.1 54.7 57.5 61.2
MHNCCX-08 HEATING CAPACITIES
ENTERING WATER TEMPERATURE (°F)
ENTERING
AIR (°F) NOMINAL CFM GPM WPD 100° 110° 120° 130° 140° 150° 160° 170° 180° 190° 200°
2.0 0.5 13.5 17.2 20.9 24.6 28.2 32.0 35.8 39.4 43.3 46.8 50.5
3.0 1.1 15.8 19.5 23.2 26.9 31.5 .34.3 40.0 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° 140° 150° 160° 170° 180° 190° 200°
2.0 0.5 10.5 14.1 17.7 21.3 25.0 28.5 32.6 35.7 40.1 42.9 46.5
3.0 1.1 12.6 16.3 20.0 23.7 28.3 34.8 36.8 42.2 45.2 49.6 53.3
70 800
4.0 1.9
14.1 17.8 21.5 25.2 30.3 32.6 39.3 43.7 48.3 51.1 54.8
MHNCCX-08 HEATING CAPACITIES
ENTERING WATER TEMPERATURE (°F)
ENTERING
AIR (°F) NOMINAL CFM GPM WPD 100° 110° 120° 130° 140° 150° 160° 170° 180° 190° 200°
2.0 0.5 7.1 10.8 14.5 18.2 21.8 25.6 29.4 33.0 36.9 40.4 44.1
3.0 1.1 9.4 13.1 16.8 20.5 25.1 27.9 33.6 35.3 42.0 46.4 50.1
80 800
4.0 1.9
10.9 14.6 18.3 22.0 27.1 33.1 36.1 40.5 45.1 47.9 51.6
These specifications are subject to change without notice.