York YECFC Manuale di istruzioni
YECFC Fan Coil Unit
Installation, Operation &
Maintenance Manual
FORM NO.:
6A4Y-A01A-NE-EN
Air Flow：150~750L/S
Contents
Contents
1.
Overview of Product 1
1.1
Explanation of Models 1
1.2
Outlines & imensions & Weight 1
1.3
Nameplate 6
1.4
Characteristics of Fan Coil Unit 6
1.5
Working Operating Range of Fan Coil Unit 6
2.
ransportation & Installation 7
2.1
Transportation 7
2.2
Acceptance 7
2.3
Storage 7
2.4
Lifting of the Unit 7
2.5
Points for Attention before Installation 7
2.6
Points for Attention during Installation 8
2.7
Installation 8
3.
Startup & Running of Product 9
3.1
Check before Start Up 9
3.2
Electric Connection 10
3.3
Cold Area Operation 11
4.
Maintenance & Service of Product 11
4.1
Air Filter 11
4.2
Cooling Coil and Heating Coil 11
4.3
Fan and Motor Assemblies 11
5.
Failure Analysis 12
5.1
Low Air Flow Rate 12
5.2
High Air Flow Rate 12
5.3
High Noise and Vibration Level 12
Overview of product
1
1. Overview of Product
1.1 Explanation of Models
YORK Corporation can supply many types and models of fan coil unit. Users can select applicable products
according to their own taste, the installation space and position, etc. etailed types and models are explained as
below.
1.2 Outlines & Dimensions & Weight
01&02 3/4R Model Cooling
Overview of product
2
01&02 A/CR Model Cooling and Heating
03 3/4R Model Cooling
Overview of product
3
03 A/CR Model Cooling and Heating
04&05 3R Model Cooling
Overview of product
4
04&05 4R Model Cooling
04&05 AR Model Cooling and Heating
Overview of product
5
04&05 CR Model Cooling and Heating
Model A B C E W H G
Plenum Conn
im
(mm x mm)
Return Plenum
Conn im
( x F)
YECFC-01CB-3(4/A/C) 725
755
1030
233
558
233 130
775 x 130 750 x 190
YECFC-02CB-3(4/A/C) 1005
1035
1310
233
558
233 130
1055 x 130 1030 x 190
YECFC-03CB-3(4/A/C) 1505
1535
1810
233
558
233 130
1555 x 130 1530 x 190
YECFC-04CB-3(4/A/C) 1605
1635
1910
317
558
317 214
1655 x 214 1630 x 274
YECFC-05CB-3(4/A/C) 1820
1850
2125
317
558
317 214
1870 x 214 1845 x 274
Notes:
1. Facing the air outlet, the left type unit has pipes on the left side, right type unit opposite.
2. Filter frame is provided as standard. Filter media is provided as an option.
3. Chiller water inlet/outlet connection size for 04/05 4/C Rows unit is R1". For other unit, the chiller water inlet/outlet connection
size is Rc3/4".
4. .Inlet/outlet hot water pipe diameter for 4 pipes unit is Rc 1/2".
Unit Weight, kg
Model
Rows 01 02 03 04 05
3 Rows 20.8 24.8 33.4 43.8 52.8
4 Rows 21.5 25.7 34.7 47.9 54.9
3+1 Rows 21.5 25.7 34.7 47.9 54.9
4+1 Rows 22.3 27.0 36.3 49.1 57.8
Notes: Unit weight is without water content.
Overview of product
6
1.3 Nameplate
You can get the unit information and simple
performance parameters from the nameplate.
1.4 Characteristics of Fan Coil Unit
Special hyperbolic design fins enhance heat
transfer efficiency Fins spacing is optimized to
promote heat exchange efficiency and minimize
air pressure drop.
All fans are statically and dynamically balanced,
forwardly curved, W I centrifugal type. The
EC fan motor assembly is designed for
low-noise operation, while having compact
dimensions and permitting easy installation and
replacement.
High efficiency electronically commutated (EC) motors is fitted as standard on all units. Motor can be
regulated by 0-10V C signal supplied by a BMS, thermostat or C controller. The motor is resiliently
mounted, self aligning and oiled for life.
YECFC fan coil units have a variable speed driven permanent magnet motor and as such have an extremely
wide operating envelope. When fan air supply quantities and external static resistances are extremely low,
noise generated by air movement is significantly decreased. Under such circumstances, when air movement
noise is extremely low, motor noise may become audible in the form of a very low level background hum.
This condition is normal with this model of EBM motor when operating at a control voltage of below 4V.
When units are installed into a ceiling concealed non-ducted application with minimal external static
resistance, it may be desirable to limit the minimum control voltage to 4 volts if low levels of motor noise is
of concern.
The installing contractor is responsible to commission fan coil units with minimum and maximum control
voltage settings commensurate with the units design operating range.
The fan and motor performance classes exceed the new ErP15 (European Energy- related Products irective)
irective.
Water supply and return header is made of a single forged threaded brass connector. The header provides
water distribution through the water circuits for high heat exchange efficiency and reduced water pressure
drop.
Coils are designed for a wide elta T with chilled water application typically 7-10 degrees C and hot water
typically 15-20 degrees C.
The coil maximum working pressure is 1.6Mpa. Each coil is leak tested by a 2.8Mpa nitrogen overpressure
test.
Optimal design of condensate drain pan can effectively drain condensate water and reduces the growth of
bacteria and microbial growth. The drain tray is stainless steel to avoid corrosion and is extended 100mm
beyond the casing to capture any condensate from the chilled water control valve.
The external casing is made of galvanized steel. Insulation is pressed and adhered on inner wall of the panel,
which avoids cold bridge. The underside of the drain pan is insulated with
primary hot-press molded insulation.
All factory wiring is provided to terminals located in a metallic box for customer connection.
1.5 Working operating range of fan coil Unit
It is recommended the temperature of chilled water should not be lower than 5℃.
It is recommended the temperature of hot water temperature should not be higher than 80℃.
Conditioned and treated water quality is required.
For maximum operating life the running temperature≤40℃ and relative humidity≤95%.
Product Conveyance Installation
7
2. ransportation & Installation
2.1 ransportation
Units are normally shipped ex-works. They are inspected, tested, and packaged prior to dispatch, carefully loaded
into containers, shipped to country of destination, unloaded, and delivered to jobsite.
Immediately upon receipt at jobsite, inspection should be made for any damage, which must be reported to
Johnson Controls within 24 hours of receipt of goods.
When moving the fan coil unit, please handle with care and prevent the coil water inlet, outlet and drain pipes
from getting bent or damaged. Use only approved lifting equipment. o not carry the unit by the fan or motor
assembly to avoid distortion.
Package for YECFC01~03 Units Package for YECFC04&05 Units
2.2 Acceptance
All items must be checked against customer purchase order, delivery docket, and submittal drawings for
correctness and any claims for non-compliance or short supply reported to Johnson Controls within 72 hours of
delivery.
2.3 Storage
If the unit is stored on the jobsite, it should be protected against exposure to the elements.
Specifically units should be securely protected from theft, accidental damage, water ingress, moisture damage,
rusting, or dust.
2.4 Lifting of the Unit
uring the installation process, be careful to prevent the unit from any damage due to improper lifting and rigging.
Use only approved lifting equipment. Safety should always be a priority. Only authorized lifting equipment and
trained installers should be used. Equipment should be installed in accordance with all national safety codes.
2.5 Points for Attention before Installation
Before the unit is installed, the following should be verified during the construction of the building:
1. Water Supply
2. Power Supply
3. Supply air, return air, and outside air ducting (if applicable)
4. Ceiling Mounting points
5. Service Access
Product Conveyance Installation
8
2.6 Points for Attention during Installation
For ceiling installation, hang the unit on threaded rods using the mounting holes provided. Alternately rubber
isolators or spring mounts can be used. YECFC units exhibit low levels of unit vibration and have high levels of
balance as each direct drive EC fan / motor assembly is provided as a single manufactured and tested entity from
the supplier.
Ensure correct spacing and alignment of mounting points directly above the mounting points on the unit chassis.
This is important where the suspension points have been fixed into the concrete slab directly above the unit.
uring the installation, be careful to avoid building materials damaging unit panels or components.
o not remove protective covers from the coil connections until the unit is ready to be piped up.
Before the unit starts operation, any debris in the drain tray and the drain piping should be removed.
Ensure sufficient side clearance to enable air filter removal. Allow at least 600mm service clearance.
Installation of CB series-ceiling concealed type unit: Insert the reserved screws on ceiling to the six kidney-shaped
holes.
2.7 Installation
2.7.1 Water Piping
Flow and return water pipes IN and OUT are marked on the unit and water pipework should be connected through
flexible couplings to avoid transmission of vibration and to allow for pipework expansion and contraction.
YECFC water connections incorporate male pipe threads as scheduled in the table in this manual.
o not overtighten the water connections. Torque should not exceed 50 N.M so as to avoid breakage. Significant
care should be taken when attaching water pipes or water valves to the coil connections.
In order to confirm the unit is not damaged during transportation, leakage inspection (1.0Mpa) for coil is required
before installation.
Use a pipe wrench to restrain the pipe connections of the coil when connecting external pipework.
2.7.2 Piping Support
The weight of all connecting water pipes should be independently suspended and should not be borne by the unit.
Provide a minimum of 600mm service access to all water inlet, outlet and drain pipe interfaces.
2.7.3 Determination of Water Handing of the Unit
The water inlet and outlet pipe interfaces can be arranged in the right or left side of the unit. When viewing from
the unit air outlet (or reverse the air flow direction), if the water inlet and outlet pipes are at the right side of the
unit, the unit is called a Right-handed Unit; conversely, it is a Left-handed Unit.
Ensure correct handing of the unit to be installed.
2.7.4 Condensed Water Drainage
Install the YECFC fan coil level using a spirit level. Adjust the hanger rods or mounting bolt tension to achieve
minimum 5 mm side to side slope towards the drain outlet pipe. o not install the unit with a slope away from the
drain outlet pipe.
The external drain piping should slope downward and away from the fan coil unit.
Note: YECFC units are a “blow through” design.
2.7.5 Water reatment
Chilled and hot water systems must be filled with clean and properly treated water.
Water circuits must be adequately flushed to remove construction debris.
Indice
Altri manuali York Fan
York
York ZB Series Manuale utente
York
York V* Series Guida rapida
York
York PW Series Guida alla risoluzione dei problemi
York
York YEFB Series Manuale utente
York
York MFSI Manuale utente
York
York ZT078-102 Manuale utente
York
York CI Series Manuale utente
York
York CC10 Manuale utente
York
York Predator ZF150 Manuale utente
York
York YHMH 20 Scheda tecnica
