4 UNT-PRC002-GB
Technical Data
FWD 08 12 20 30 45
Power supply (V/Ph/Hz) 230/1/50
Capacities
Cooling capacity on water (1) (kW) 5,2 8,3 15 18,8 30,1
Heating capacity on water (2) (kW) 6,3 11,9 18,9 20,9 38,2
Fan motor (type) 2 x direct drive centrifugal
Fan power input (3) (kW) 0,23 0,46 0,65 1,04 1,51
Current amps (3) (A) 1,1 2,2 3,1 4,7 5,5
Start-up amps (A) 3,2 5,5 9,3 14,1 16,5
Air flow
minimum (m
3
/h) 490 980 1400 1800 2700
nominal (m
3
/h) 820 1650 2300 3000 4500
maximum (m
3
/h) 980 1970 2600 3600 5400
Main coil
Water entering/leaving connections (type) ISO R7 rotating female
(Dia) 3/4" 3/4" 1 1/2" 1 1/2" 1 1/2"
Electric heater (accessory for blower only)
Electric power supply (V/Ph/Hz) 230/1/50 230/1/50 or 400/3/50 400/3/50 400/3/50 400/3/50
Heating capacity (kW) 2/4 8 10 12 12
Hot water coil (accessory for blower only)
Heating capacity (4) (kW) 6,3 12 17,4 22,4 34,5
G2 filter (filter box accessory)
Quantity 2 2 2 2 2
Dimensions ( LxWxth) (mm) 386x221x8 486x271x8 586x321x8 586*421*8 586*621*8
G4 filter (filter box accessory)
Quantity - 2 2 2 2
Dimensions ( LxWxth) (mm) - 486x264x48 586x314x48 586*414*48 586*614*48
Condensate pump (accessory) (type) Centrifugal
Water flow - lift height (l/h - mm) 24 - 500
Not available for FWD30 and FWD45
Sound level (L/M/H speed)
Sound pressure level (5) (dB(A)) 36/40/43 38/41/44 46/50/53 47/52/57 47/52/58
Sound power level (5) (dB(A)) 46/50/53 48/51/54 56/60/63 57/62/67 57/62/68
Unit dimensions
Width x Depth (mm) 890 x 600 1090 x 710 1290 x 820 1290 x 970 1290 x 1090
Height (mm) 250 300 350 450 650
Shipped unit dimensions
Width x Depth (mm) 933 x 644 1133 x 754 1333 x 864 1333 x 1008 1333*1133
Height (mm) 260 310 360 460 660
Weight (kg) 32 46 61 76 118
Colour galvanised steel
Recommended fuse size
Unit alone (aM/gI) (A) 8/16 8/16 8/16 8/25 8/25
Unit with electric heater (gI) (A) 16 (2kW),25 (4kW) 40 (230V),3*16 (400V) 3*20 3*25 3*25
(1) Conditions: Water entering/leaving temperature: 7/12 °C, Air inlet temperature 27/19°C DB/WB - Nominal air flow
(2) Conditions: Water entering/leaving temperature: 50/45 °C, Air inlet temperature 20°C DB - Nominal air flow
(3) At high speed with nominal air flow.
(4) Water entering/leaving temperature 90/70 °C, air inlet temperature 20 °C DB, Nominal air flow.
(5) A rectangular glass wool duct 1m50 long is placed on the blower.The measurement is taken in the room containing the blower unit.
Heat exchanger operating limits:
FWD:
*water temperature: max 100° C
*absolute service pressure: min 1 bar/max 11 bars
Accessories - Hot water coil:
*water temperature: min. +2° C/max. 100° C
*absolute service pressure: min 1 bar/max 11 bars
CG-SVX051A-GB
54
Installation Checklist
Complete this checklist when the CMAF unit is installed,
and verify that all recommended procedures are
accomplished before the unit is started. This checklist
does not replace the detailed instructions given in the
“Installation Mechanical” and “Installation Electrical”
sections of this manual. Read both sections completely,
to become familiar with the installation procedures, prior
beginning the work.
General
When installation is complete, before starting the unit,
the following prestart procedures must be reviewed and
verified:
Caution : Follow proper lockout/tagout procedures to
ensure the power can not be inadvertently energized.
Failure to disconnect power before servicing could result
in death or serious injury.
WARNING Live Electrical Components!
During installation, testing, servicing and
troubleshooting of this product, it may be necessary to
work with live electrical components. Have a qualified
licensed electrician or other individual who has been
properly trained in handling live electrical components
perform these tasks.Failure to follow all electrical safety
precautions when exposed to live electrical components
could result indeath or serious injury.
1. Inspect all wiring connections in the compressor
power circuits (disconnects, terminal block,
contactors, compressor junction box terminals and
so forth) to ensure they are clean and tight.
Verify that all refrigerant valves in the discharge, liquid,
and oil return lines are “OPEN”.
Check the power-supply voltage to the unit at the main-
power fused-disconnect switch. Voltage must be within
the voltage use range and also stamped on the unit
nameplate. Voltage fluctuation must not exceed 10%.
Voltage imbalance must not exceed 2%
Check the unit power phasing L1-L2-L3 in the starter
to ensure that it has been installed in a “A-B-C” phase
sequence.
Fill the evaporator chilled-water circuit. Vent the system
while it is being filled. Open the vents on the top of the
water exchangers during filling and close when filling is
completed.
Close the fused-disconnect switch(es) that supplies
power to the chilled/hot water pump starter.
Start the chilled-water pump to begin circulation of
the water. Inspect all piping for leakage and make any
necessary repairs.
With water circulating through the system, adjust the
water flow and check the water pressure drop through
the water exchangers.
Adjust the chilled-water flow switch for proper operation.
Reapply power to complete the procedures
Prove all Interlock and Interconnecting Wiring Interlock
and External as described in the Electrical Installation
section.
Check and set, as required, all Symbio™ TD7 menu
items.
Stop the water pumps.
Energize the compressor and oil separator heaters 24
hours, prior to unit start up
Unit Voltage Power Supply
Unit voltage must meet the criteria given in the
installation Electrical Section. Measure each lead of
the supply voltage at the main power fused-disconnect
switch for the unit. If the measured voltage on any lead
is not within the specified range, notify the supplier of
the power and correct the situation before operating the
unit.
Unit Voltage Imbalance
Excessive voltage imbalance between the phases of a
three-phase system can cause motors to overheat and
eventually fail. The maximum allowable unbalance is
2%. Voltage imbalance is determined using the following
calculations:
% Imbalance = [(Vx – Vave) x 100/Vave]
Vave = (V1 + V2 + V3)/3
Vx = phase with greatest difference from Vave (without
regard to the sign)
Unit Voltage Phasing
It is important that proper rotation of the compressors
be established before the unit is started. Proper motor
rotation requires confirmation of the electrical phase
sequence of the power supply. The motor is internally
connected for clockwise rotation with the incoming
power supply phases A-B-C.
When rotation is clockwise, the phase sequence is
usually called “ABC”, when counterclockwise “CBA”
This direction may be reversed by interchanging any two
of the line wires.
1. Stop the unit from TD7/Symbio™ .
Open the electrical disconnect or circuit protection
switch that provides line power to the line power
terminal block(s) in the starter panel (or to the unit
mounted disconnect).
Connect the phase-sequence indicator leads to the line
power terminal block (L1-L2-L3).
Turn power on by closing the unit supply-power fused-
disconnect switch.
Read the phase sequence on the indicator. The ABC LED
of the phase indicator will glow.
WARNING! It is imperative that L1, L2, and L3 in the
starter be connected in the A-BC phase sequence to
prevent equipment damage due to reverse rotation.
Pre-Start Checkout
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