Carrier 42NL Original Instructions Manual
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Carrier 42NL Original Instructions Manual

Hydronic ducted fan coil units
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P R O D U C T S E L E C T I O N D ATA
Hydronic Ducted Fan Coil Units
42NL & 42NH
● Modular Horizontal
ducted unit
● Extremely quiet operation
● Low Energy Consumption
● Flexibility for simplified
installation
● Improved comfort
● Efficient Indoor Air Quality
CARRIER participates in the ECP programme for FC/FCP
Check ongoing validity of certificate:
www.eurovent-certification.com
www.certiflash.com
Original instructions

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Summary of Contents for Carrier 42NL

  • Page 1 ● Low Energy Consumption ● Flexibility for simplified installation ● Improved comfort ● Efficient Indoor Air Quality Hydronic Ducted Fan Coil Units 42NL & 42NH CARRIER participates in the ECP programme for FC/FCP Check ongoing validity of certificate: www.eurovent-certification.com www.certiflash.com Original instructions...

  • Page 2: Table Of Contents

    7 - 42NH AND 42NL PERFORMANCE DATA ........................20 7.1 - Physical and electrical data at Eurovent conditions - 42NL - Sizes 2 and 3 ..............20 7.2 - Physical and electrical data at Eurovent conditions - 42NL - Size 4 ................21 7.3 - Physical and electrical data at Eurovent conditions - 42NL - Size 5 ................

  • Page 3: Functions And Configurations

    1.2 - Configuration flexibility • Safe factory installed electric heater with multiple capacity stages choices. Each of the 42NL and 42NH sizes can be provided: • Low water pressure drop with factory installed valves. With free inlet and/or outlet •...

  • Page 4: Standard Spigots Configuration

    (*) = Minimum number of spigots required to ensure sufficient available static pressure and fan reliability NOTE: • Electrical heater are not available for 42NL Units when plenum are selected (due to minimum airflow requirement) • Non-standard configurations not listed above can be provided upon special request. Contact your local Carrier representative.
  • Page 5 Standard spigots configuration (Continued) Standard Configuration with inlet and outlet rectangular flanges: For enhanced compact design, a lateral fresh air spigot can be added to the base unit (A) RECT. FLANGE INLET BASE UNIT RECT. FLANGE OUTLET Standard Configuration with spigots without fresh air: First extra lateral spigot is placed on the opposite...
  • Page 6 Standard spigots configuration (Continued) Useful configurations are displayed below: U-shaped L-shaped T-shaped H-shaped or I-shaped Without filter configurations (Ultra Compact Design) U-shaped H-shaped or I-shaped Size 2 Compatibility Reminder Size 3 Sizes 4 to 7 22x / 23x 1x160 NH/NL n.a.
  • Page 7 Standard spigots configuration (Continued) M5 Filter configurations “Fresh Air” Configuration at outlet side (D) A large plenum at the inlet side is always needed in order to fit the M5 filter with a wider frame. “Fresh Air” Configurations at inlet side Lateral Fresh Air (opposite to coil hand) Option 2 “In_opp”...

  • Page 8: Dimensional Drawings

    Weight* [kg] LEGEND Lateral optimized fresh air position in base unit (opposite to coil hand at inlet) Maximum weight 42NL/NH (AC or EC motor version) - without valve option - without water Air flow direction All dimensions are in mm.
  • Page 9 Lateral optimized fresh air position in base unit (opposite to coil hand at inlet) In line fresh air position for compact plenum (with or without filter) Maximum weight 42NL/NH (AC or EC motor version) - without valve option - without water Air flow direction...
  • Page 10 Lateral optimized fresh air position in base unit (opposite to coil hand at inlet) Lateral fresh air position in large plenum (at inlet or outlet side) Maximum weight 42NL/NH (AC or EC motor version) - without valve option - without water Air flow direction...

  • Page 11: Main Modules And Components

    The As an option, all speeds of the multi-speed fan are condensate drain pan height is optimised. available with bare wires (six speeds for 42NL and five speeds for 42NH) offering the unit greater flow control 3.2 - Fan motors flexibility.

  • Page 12: Water Coil

    To prevent coil soiling, Carrier recommends the usage of a filter either fitted in the fan-coil unit or in return air grille. 42NH offers...

  • Page 13: Options Specifications

    A minimum control signal of 3V is selected by default with Electronic Carrier controller (NTC / WTC). To prevent low airflow with 42NL range, plenum cannot be chosen as an option. 4.2 - Fresh air controller (option) 4.2.1 - Constant volume fresh air controller...

  • Page 14: Valves And Actuators (Option)

    The unit can be equipped with an optional variable fresh air flow controller from 0-55 l/s (0-200 m /h). It is connected to the numeric Carrier controller and can regulate the fresh air intake in two ways: • Either using a fixed rate set by the installer that can be reconfigured as required •...
  • Page 15 1/2” - Modulating valve (3-points & 0-10V) 42NL/NH - Size 2 Kvs = 1 1/2” - Modulating valve (3-points & 0-10V) 42NL/NH - Sizes 3, 4, 5 Kvs = 1.6 3/4” - Modulating valve (3-points & 0-10V) 42NL/NH - Size 6 Kvs = 2.5...

  • Page 16: Flexible Water Pipes (Option)

    Features of the 3/4” two-way valves with balancing In case of fan-coil unit delivered with an electrical box, the function for 42NL/NH sizes 2 and 3 “water sensor” option is actually a switch that will be • 3/4” male BSP connection for union nuts connected to the Carrier thermostat.

  • Page 17: Control (Option)

    5 - CONTROL (OPTION) The unit can be supplied with a wide range of Carrier controls. These offer functions to suit the various application requirements, summarised in the table below. Thermostats Communication Protocols Carrier Communication Network (CCN) Aquasmart compatible BACnet MSTP...

  • Page 18: Product Characteristics List

    Valve body Balancing valves are not available for unit sizes 6xx and 7xx 2-way balancing valve 2-way balancing valve and pressure points Electrical heaters are not compatible with 42NL with Without electric heater plenum. 500W electric heater 800W electric heater...
  • Page 19 R5 = minimum speed for 42NH R1 = maximum speed When this option is not selected, the standard wiring Fan speed wiring for AC for all 42NL and 42NH units is always R5-R3-R1 R6 not available for 42NH range motor Bundle...

  • Page 20: 42Nh And 42Nl Performance Data

    7 - 42NH AND 42NL PERFORMANCE DATA 7.1 - Physical and electrical data at Eurovent conditions - 42NL - Sizes 2 and 3 With G1 filter - without plenum 42NL Fan speed (Eurovent certification speeds) (Max) (L) (Max) (L) (Max) (L)

  • Page 21: Physical And Electrical Data At Eurovent Conditions - 42Nl - Size 4

    7.2 - Physical and electrical data at Eurovent conditions - 42NL - Size 4 With G1 filter - without plenum 42NL Fan speed (Eurovent certification speeds) (Max) (Max) Air flow 1085 1085 Available static pressure Cooling mode, two pipes* Total cooling capacity 2.43...

  • Page 22: Physical And Electrical Data At Eurovent Conditions - 42Nl - Size 5

    7.3 - Physical and electrical data at Eurovent conditions - 42NL - Size 5 With G1 filter - without plenum 42NL Fan speed (Eurovent certification speeds) (Max) (L) (Max) (L) (Max) Air flow 1127 1291 1127 1291 1127 1291 Available static pressure...

  • Page 23: Physical And Electrical Data At Eurovent Conditions - 42Nh - Sizes 2 And 3

    7.4 - Physical and electrical data at Eurovent conditions - 42NH - Sizes 2 and 3 With G1 filter - without plenum 42NH Fan speed (Eurovent certification speeds) (Max) (L) (Max) (L) (Max) Air flow Available static pressure Cooling mode, two pipes* Total cooling capacity 0.66 1.27...

  • Page 24: Physical And Electrical Data At Eurovent Conditions - 42Nh - Size 4

    7.5 - Physical and electrical data at Eurovent conditions - 42NH - Size 4 With G1 filter - without plenum 42NH Fan speed (Eurovent certification speeds) (Max) (Max) Air flow Available static pressure Cooling mode, two pipes* Total cooling capacity 2.02 2.75 3.19...

  • Page 25: Physical And Electrical Data At Eurovent Conditions - 42Nh - Size 5

    7.6 - Physical and electrical data at Eurovent conditions - 42NH - Size 5 With G1 filter - without plenum 42NH Fan speed (Eurovent certification speeds) (Max) (Max) (Max) Air flow 1004 1004 1004 Available static pressure Cooling mode, two pipes* Total cooling capacity 3.63 3.96...

  • Page 26: Physical And Electrical Data At Eurovent Conditions - 42Nh - Sizes 6 And 7

    7.7 - Physical and electrical data at Eurovent conditions - 42NH - Sizes 6 and 7 With G1 filter - without plenum 42NH Fan speed (Eurovent certification speeds) (Max) (Max) (L) (Max) (L) (Max) Air flow 1072 1428 1657 1796 720 1072 1428 1657 1796 368 1089 1400 399 1176 1310 1531...

  • Page 27: Thermal Capacities

    7.8 - Thermal capacities 7.8.1 - Cooling capacity 2-pipe water coil Entering / leaving 42NH & NL 225 / 229 water Relative humidity 50% Air flow, m /h (l/s) temperature, °C (56) (69) (97) (111) (125) (139) Entering air dry-bulb temperature, °C 6-12 1.22 0.96...
  • Page 28 7.8.1 - Cooling capacity 2-pipe water coil (continued) Entering / leaving 42NH & NL 425 / 429 water Relative humidity 50% Air flow, m /h (l/s) temperature, °C (125) (153) (208) (236) (264) 1050 (292) Entering air dry-bulb temperature, °C 6-12 2.53 1.97...
  • Page 29 7.8.1 - Cooling capacity 2-pipe water coil (continued) Entering / leaving 42NH 635 / 639 water Relative humidity 50% Air flow, m /h (l/s) temperature, °C (83) (97) (125) (153) (167) (194) Entering air dry-bulb temperature, °C 6-12 4.40 3.42 2.64 6.63 5.18...
  • Page 30 7.8.2 - Cooling capacity 4-pipe water coil Entering / leaving 42NH & NL 235 / 239 / 279 water Relative humidity 50% Air flow, m /h (l/s) temperature, °C (56) (69) (97) (111) (125) (139) Entering air dry-bulb temperature, °C 6-12 1.04 0.81...
  • Page 31 7.8.2 - Cooling capacity 4-pipe water coil (continued) Entering / leaving 42NH & NL 545 / 549 water Relative humidity 50% Air flow, m /h (l/s) temperature, °C (153) (181) (236) 1000 (278) 1150 (319) 1300 (361) Entering air dry-bulb temperature, °C 6-12 3.25 2.53...
  • Page 32 7.8.3 - Heating capacity 2-pipe water coil Entering / leaving 42NH & NL 225 / 229 Air flow, m /h (l/s) water (56) (69) (97) (111) (125) (139) temperature, °C Entering air dry-bulb temperature, °C 50-45 1.61 1.68 1.75 1.96 2.04 2.12 2.59...
  • Page 33 7.8.3 - Heating capacity 2-pipe water coil (continued) Entering / leaving 42NH & NL 525 / 529 Air flow, m /h (l/s) water (153) (181) (236) 1000 (278) 1150 (319) 1300 (361) temperature, °C Entering air dry-bulb temperature, °C 50-45 4.17 4.34 4.52...
  • Page 34 7.8.4 - Heating capacity 4-pipe water coil Entering / leaving 42NH & NL 235 / 239 / 279 water Air flow, m /h (l/s) (56) (69) (97) (111) (125) (139) temperature, °C Entering air dry-bulb temperature, °C 60-50 1.28 1.33 1.37 1.54 1.59...
  • Page 35 7.8.4 - Heating capacity 4-pipe water coil (continued) Entering / leaving 42NH & NL 545 / 549 water Air flow, m /h (l/s) (153) (181) (236) 1000 (278) 1150 (319) 1300 (361) temperature, °C Entering air dry-bulb temperature, °C 60-50 2.95 3.06 3.17...

  • Page 36: Sound Power Levels

    7.9 - Sound power levels 7.9.1 - 42NL 42NL 2-5 (AC - multi-speed version) 42NL 2-9 (EC - brushless motor) Octave band frequency (Hz) Octave band frequency (Hz) Speed Type dB(A) Speed Type dB(A) GLOBAL GLOBAL GLOBAL GLOBAL GLOBAL GLOBAL...

  • Page 37: Sound Power Levels (Continued)

    7.9 - Sound power levels (continued) 42NH 3-5 (AC - multi-speed version) 42NH 3-9 (EC - brushless motor) Octave band frequency (Hz) Octave band frequency (Hz) Speed Type dB(A) Speed Type dB(A) RET + RAD RET + RAD RET + RAD RET + RAD RET + RAD RET + RAD...
  • Page 38 (RET or SUP) using the correction factors in the a non-ducted unit without return or supply air plenums. tables below: Return plenum attenuation Supply plenum attenuation Octave band frequency (Hz) Octave band frequency (Hz) Unit Size 42NH/42NL Unit Size 42NH/42NL dB(A) dB(A) -3.8 -6.8 -9.0 -8.9...

  • Page 39: Electrical Data

    7.10 - Electrical data 7.10.1 - 42NL 42NL 2-5 (AC multi-speed version) 42NL 2-9 (EC brushless motor) Speed Speed Filter Filter (l/s) (Pa) (l/s) (Pa) 0.35 0.14 0.35 0.13 0.35 0.13 0.35 0.13 0.35 0.13 0.35 0.13 0.34 0.12 0.34 0.11...
  • Page 40 7.10.1 - 42NL (continued) 42NL 3-5 (AC multi-speed version) 42NL 3-9 (EC brushless motor) Speed Speed Filter Filter (l/s) (Pa) (l/s) (Pa) 0.44 0.39 0.44 0.39 0.43 0.38 0.43 0.37 0.42 0.37 0.41 0.36 0.41 0.35 0.41 0.34 0.40 0.31 0.40...
  • Page 41 7.10.1 - 42NL (continued) 42NL 4-5 (AC multi-speed version) 42NL 4-9 (EC brushless motor) Speed Speed Filter Filter (l/s) (Pa) (l/s) (Pa) 0.69 1075 0.80 0.69 1050 0.79 0.68 1000 0.79 0.68 0.79 0.67 0.78 0.67 0.77 0.66 0.76 0.65 0.74...
  • Page 42 7.10.1 - 42NL (continued) 42NL 5-5 (AC multi-speed version) 42NL 5-9 (EC brushless motor) Speed Speed Filter Filter (l/s) (Pa) (l/s) (Pa) 0.74 1290 0.39 0.74 1275 0.39 0.73 1250 0.37 0.73 1225 0.36 0.73 1200 0.35 0.72 1150 0.34 0.71...
  • Page 43 7.10.2 - 42NH 42NH 2-5 (AC multi-speed version) 42NH 229 & 239 (EC brushless motor) 42NH 279 (EC brushless motor) Speed I Speed I Speed I Filter Filter Filter Filter Filter Filter (l/s) /h) (Pa) (Pa) (l/s) /h) (Pa) (Pa) (l/s) /h) (Pa) (Pa)
  • Page 44 7.10.2 - 42NH (continued) 42NH 3-5 (AC multi-speed version) 42NH 3-9 (EC brushless motor) Speed Speed Filter Filter Filter Filter (l/s) (Pa) (Pa) (l/s) (Pa) (Pa) 0.88 1.35 1000 0.88 1.34 0.88 1.34 0.88 1.33 0.87 1.33 0.87 1.33 0.87 1.33 0.85 1.32...
  • Page 45 7.10.2 - 42NH (continued) 42NH 4-5 (AC multi-speed version) 42NH 4-9 (EC brushless motor) Speed Speed Filter Filter Filter Filter (l/s) (Pa) (Pa) (l/s) (Pa) (Pa) 0.72 1330 1.31 1050 0.71 1300 1.31 1000 0.67 1200 1.31 0.63 1100 1.31 0.60 1000 1.31...
  • Page 46 7.10.2 - 42NH (continued) 42NH 5-5 (AC multi-speed version) 42NH 5-9 (EC brushless motor) Speed Speed Filter Filter Filter Filter (l/s) (Pa) (Pa) (l/s) (Pa) (Pa) 0.76 1450 1.88 1845 0.74 1400 1.88 1800 0.70 1300 1.88 1700 0.67 1200 1.88 1600 0.64...
  • Page 47 7.10.2 - 42NH (continued) 42NH 6-5 (AC multi-speed version) 42NH 6-9 (EC brushless motor) Speed Speed Filter Filter Filter Filter (l/s) (Pa) (Pa) (l/s) (Pa) (Pa) 1.55 2315 2.01 1880 1.55 2300 1.97 1850 1.48 2200 1.91 1800 1.43 2100 1.80 1700 1.37...
  • Page 48 7.10.2 - 42NH (continued) 42NH7-5 (AC multi-speed version) 42NH 7-9 (EC brushless motor) Speed Speed Filter Filter Filter Filter (l/s) (Pa) (Pa) (l/s) (Pa) (Pa) 1.86 2825 1.85 2285 1.80 2800 1.79 2250 1.74 2700 1.78 2100 1.67 2600 1.71 1900 1.61 2500...

  • Page 49: Water Coil Pressure Drop

    7.11 - Water coil pressure drop Water flow rate, l/s 0.01 0.03 0.04 0.06 0.08 0.11 0.14 0.17 0.19 0.22 0.25 0.28 Water flow rate, l/h 1000 42NH/NL Water coil type Pressure drop (kPa) Two-pipe (7/12°C) Two-pipe (7/12°C) & Four-pipe cooling (7/12°C) Four-pipe heating (70/60°C) Two-pipe (7/12°C) Two-pipe (7/12°C)

  • Page 50: Air Flow Data

    7.12 - Air flow data Static pressure available (Pa) as a function of the air flow, m3/h (l/s) 7.12.1 - 42NL Range 42NL 2-5 (with G1 filter) 42NL 2-9 (with G1 filter) 7V 8V 9V 10V Air Flow, m Air Flow, m...
  • Page 51 42NL 5-5 (with G1 filter) 42NL 5-9 (with G1 filter) 8V 9V 10V R6 R5 5V 6V 7V 1000 1200 1400 1000 1200 1400 Air Flow, m Air Flow, m 7.12.2 - 42NH Range 42NH 2-5 (with G1 filter) 42NH 229 & 239 (with G1 filter)
  • Page 52 42NH 3-5 (with G1 filter) 42NH 3-9 (with G1 filter) 8V 9V 10V 1000 1000 Air Flow, m Air Flow, m 42NH 4-5 (with G1 filter) 42NH 4-9 (with G1 filter) 8-10V 1000 1200 1400 1000 1200 1400 Air Flow, m Air Flow, m 42NH 5-5 (with G1 filter) 42NH 5-9 (with G1 filter)
  • Page 53 42NH 6-5 (with G1 filter) 42NH 6-9 (with G1 filter) 9V 10V 800 1000 1200 1400 1600 1800 2000 2200 2400 800 1000 1200 1400 1600 1800 2000 2200 2400 Air Flow, m Air Flow, m 42NH 7-5 (with G1 filter) 42NH 7-9 (with G1 filter) 9-10V 1000...
  • Page 54 Pressure drop (Pa) for supply and retun plenum boxes as a function of the number of spigots 42NH & NL - Size 5 42NH & NL - Size 2 Air flow, l/s Air flow, l/s Air flow, m 1000 1250 1500 1750 Air flow, m...

  • Page 55: Operating Limits

    (60Hz not available for 42NH325 & 335) NOTE: All performances data certified by Eurovent are based on 50Hz application. Carrier doesn’t ensure the same performances when the unit operates at 60Hz; the RPM and power input of the fan-motor are usually higher.

  • Page 56: Specification Guide 42Nl/42Nh

    42NL/42NH units shall be equipped with either a cooling/ heating changeover coil, a monobloc heating The Carrier 42NL/H is a new Hydronic ducted Fan Coil suitable for all application available in two version: and cooling coil or a cooling coil and an electric •...
  • Page 57 Order No.: 10008-20, 08.2015. Supersedes order No.: 10008-20, 12.2014. Manufacturer reserves the right to change any product specification without notice. Printed in the European Union.

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