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