Johnson Controls York VCH 20A, Техническая информация

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47
Heater model
Power supply Power Consumption Stages
Automatic
switch (1)
Q1
Power supply
cable section (2)
Front sur-
face
Pressure
drop (3)
V.ph.Hz kW A A mm 2 m 2 Pa
VIR 25A
400.3.50 10 15 1 20 2.5 0.53 2.9
VIR 25A 400.3.50 15 22 1 25 4 0.53 2.9
VIR 40A 400.3.50 10 15 1 20 2.5 0.74 4.9
VIR 40A 400.3.50 20 30 2 40 6 0.74 4.9
VIR 45 and 60A 400.3.50 15 22 1 25 4 0.98 7.1
VIR 45 and 60A 400.3.50 30 46 2 50 10 0.98 7.1
VIR 75 and 90A
400.3.50 30 46 2 50 10 0.16 7.1
VIR 75 and 90A
400.3.50 40 60 2 80 25 0.16 7.1
Notes: 1.- K curve (DIN, VDE 0660-104). 2.- Based on copper conductors. 3.- Considered the nominal air flow of the indoor section.
Heater model
Dimensions with packing mm.
Weight
kg
Height Width Depth
VIR 25A 720 1 650 180 15
VIR 40A
720 1 650 180 18
VIR 45 and 60A 720 1 650 180 20
VIR 75 and 90A 720 1 650 180 29
General characteristics
Dimensions with packing and weights
Installation
Install the electric heater in the VIR unit as follows:
1) In all cases, the
established national regulations
should be followed.
2) Disconnect the power supply to the air conditioning
unit.
3) Install the magnetothermal and differential switches
for the heater in accordance with the table of General
Characteristics and the Wiring Diagrams.
4) Remove the access panels of the VCH units.
5) Unpack the accessory, opening the top of the box. Make
sure the heater assembly has not been damaged during
transportation. Check the ceramic insulation and that the
heater wires are not in contact with any metal parts.
6) Remove the side covers of the VIR unit and fit the
electric heater on the two internal vertical supports of
the coil, making the tab coincide with the drilled hole
(VIR 25A and 40A). On models VIR 45A to 90A, fit the
electric heater on the tray guide and fasten the fan
with the side sheets and to the tray guides, with the
self-threading screws supplied. Make sure the reset
push button of the F9 (F9 and F11 in 2-stage) thermal
protector is accessible and at the top.
See Assembly and General Dimensions diagram .
7) Mount the control support on the side of the unit, or
within the electrical box, depending upon the VIR unit,
and fasten with the screws provided.
8) Install the A3 board (A3 and A4 in 2-stages) in the
electric box of the VCH unit. Then connect hoses W1,
W2 (W1, W2, W3 and W4 in 2-stages), included with
this accessory, between the X2 connecting strip and
the VCH control board to the VIR unit. Connect the
power supply cables to connecting strip X1 of the VIR
unit (automatic switch 12 or automatic switch F21 in
2-stages). See wiring diagram in accordance with the
corresponding model.
9) The installer should complete the electric circuit of the
heater by fitting an air flow switch F14 (F14 and F15 in
2-stage) at the most convenient point of the ducts to
make sure the heater operates only when there is suf-
ficient air flow.
10) Connect power supply to the VCH/VIR units and the
heater.
11) For configuration of the accessory, press the test button
on control board A1 for over 2 seconds, until the red
LED goes on. Configuration is finalized once the LED
goes off.
12) Check operation of the heater by selecting the Emer-
gency Heat mode at the ambient thermostat of the air
conditioning unit.
13) Assemble the covers of the VCH/VIR units.
Note: Should the system respond incorrectly, see the Op-
eration section of the VCH/VIR Installation Instructions. This
section details the control functions of the A1 electronic
board with regard to the heater, as well as its configuration,
identification of incidents, etc.
Loose cables can cause overheating of the terminals or incorrect
operation of the unit. Fire hazards may also exist. Therefore, make
sure all cables are connected tightly.