10
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-SVU010C-GB
Low Voltage Wiring
The remote devices described below require low voltage wiring. All wiring to and from these remote input devices
to the Control Panel must be made with shielded, twisted pair conductors. Be sure to ground the shielding only at
the panel.
Important:
To prevent control malfunctions, do not run low voltage wiring (<30 V) in conduit with conductors carrying more
than 30 volts.
Emergency Stop
UC800 provides auxiliary control for a customer specified/installed latching trip out. When customer furnished
remote contact 6S2, the chiller will run normally when the contact is closed. When the contact opens, the unit will
stop and a manually resettable diagnostic is generated. This condition requires manual reset at the chiller switch
on the front of the control panel.
This customer-furnished contact must be compatible with 24 VDC, 12 mA resistive load.
External Auto/Stop
If the unit requires external Auto/Stop function, the installer must provide remote contact 6S1.
The chiller will run normally when the contact is closed. When contact opens, the compressor(s), if operating,
will go to the RUN: UNLOAD operating mode and cycle off. Unit operation will be inhibited. Closure of the contact
will permit the unit to return to normal operation.
Field-supplied contacts for all low voltage connections must be compatible with dry circuit 24 VDC for a 12mA
resistive load. Refer to the field diagrams that are shipped with the unit.
Ice Making (Optional)
When the Ice Making Command is removed (i.e. all the installed Ice Making inputs are set to “auto”), the
compressors shall be stopped after the run unload period (if not already stopped due to Ice Making Complete).
The chiller shall return to normal Auto mode of operation, and allowed to restart only after enforcing a 2 minute
delay called the “Ice to Normal Transition time”. During this inhibit, the Evaporator water flow request shall be
commanded on. After the delay, the chiller can restart again per the differential to start and the normal Chilled Water
Setpoint (or Hot Water Setpoint – if in Heating Mode). The Ice To Normal Transition inhibit shall be annunciated as a
Chiller Submode and a countdown timer showing the remaining time left shall be displayed.
Ice Making Configuration:
Ice Making is configured through TU, by the Evaporator Application item ‘Ice’.
If the Evaporator Application is set to ‘Ice’, the application will require the following LLID:
• External Ice Making Input (Dual Low Voltage Binary Input)
Ice Making Setpoints:
After Ice Making is configured, there shall be three Ice Making Settings or Setpoints:
1. Ice Making Command
2. Ice Making Enable/Disable
3. Ice Making Termination Setpoint
The ice making setpoints can all be manipulated through TU. Some of the Setpoints can be manipulated with User
Interface on the Display, the External Hardware Interface BAS (if a BAS is installed).
The setpoints associated with ice making are explained in more detail below.
Low Voltage Wiring / Ice Making (Optional)
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