Honeywell ZG 215N OPERATION AND PUTTING INTO SERVICE
Comfort Compact Controller ZG 215N
OPERATION AND PUTTING INTO SERVICE
1476
%
ZG215N
auto
3
2
20 16 12 8 6 4 2 Xp
100
90
A
80
70
60
B
50
40
30
20
10
0
10 12 14 16 18 20 22 24 26 28 30
-8450
C
P1 ACB
5
A
20...90°C
2
1,4
4
2,8
6
4,2
8
5,5
10
7,0
12
8,2
14
9,6
16
10,9
18
12,4
20
13,9
°C
8311.7352
P1
L1 L2 P1
S
CBA
C
20
B
A
CB50266
Hot Water Heating with Room Control
TW
ZG215N
////
ZG Control Unit
VM Servomotor
ZR Heating mixing valve
VF Flow sensor
VF
//
VM
////
TW Temperature selector
with room sensor
P Heating circuit pump
P
ZR
CBZG117.cdr
Operation as a Heating Control
(Fig. left)
The remote control (TF) is composed of a temperature sensor
and atemperatureselector. (If desired also two separateddevices
can be used.)
The temperature sensor measures the actual room temperature.
n
The desired value for the room temperature is to be set on
n
the temperature selector.
On the basis of both of these values the control unit calculates the
necessary watertemperature (flow temperature).It is measured by
the flow sensor (VF). If the flow temperature differs from the set
value, the control unitadjusts themixing valve (ZR)with the ser
vomotor (VM) so that the right heat input is provided to the radi
ators.
Themixing valve determines the flow temperature by mixing the
hot water from the boiler with the colder return water.
Theheating circuit pump (P) provides for the circulation of the
hot water. It is not operated by the control unit.
Thetemperature selector (TF) is used as a remote control, e.g. if
the control unit is mounted in the cellar: by means of the selector
knob P2 the room temperature can be changed. With the party
switch S1 the night economy option can be suspended.
-
-
Air-handling system with mixing chamber
VM
ZG 215N
///
///
///
ZG Control Unit
VM Servomotor
ZR Heating mixing valve
LF
FT
Poti
LF Air duct sensor
TW Temperature selector
FT Frost protection thermo
//
TW
CB2283
-
Air-handling system with heating coil
ZG Control Unit
VM Servomotor
ZR Heating mixing valve
LF
FT
LF
VM
ZG 215N
////////
LF Air duct sensor
TW Temperature selector
FT Frost protection thermo
//
TW
//
///
CB2286
-
Operation as an Air-handling Control
(fig. left both
The operation of the air-handling control is basically the same as
for warm water heating. Instead of the flow temperature, the air
temperature in the supply duct is measured.
The control unit calculates the necessary heat demand and regula
tes the drivemotor sothatthe desired room temperature is reached.
Depending on the layout of the air-handling system, the drive mo
tor operates on a different part of the system:
In case of a mixing chamber system the blinds for the inco
n
ming and outgoing air are set.
In case of heating coil control the hot water temperature is
n
set for air heating.
In both oftypes ofsystem, the supply of heat isregulated so that the
room temperature setwith thetemperatureselector is maintained.
)
-
-
-
Operating and Display Components
Pos. Function Basic Setting
A
Proportional Range
B
Operating point setting
C Reduced Mode -8
P1 Sensitivity 5
S Operating mode selector auto
L1 “Hotter” LED (red)
L2 “Colder” LED (green)
1 Instructions compartment
2 Heating curve diagram
3 Basic Settings
4 Reserve trip pins
5 Inserted trip pins
6 Timer (optional)
7 Pointer for current time
Settings on the Temperature Selector
P2 Selector knob 0
S1 Party switch auto
4
50
Operating mode selector
manu the controlunit is deactivated(the timer runs).The mixing
valve can be set manually (by hand). The pump is switched on.
auto Recommended setting for greater energysaving: automatic
change betweenday and reducedmode according to thetimer with
night switch-off.
Manual day mode, timer inactive.
Manual night mode according to the settings on the
setting knobs B minus C , the timer remains inactive.
LED’s
L1 L2
In themanu settings ofthe operating mode selector S there is no
LED display.
Both LED’s light up:
“neutral”
– mixing valve stops
only red LED lights up:
“hotter”
– mixing valve opens
only green LED lights up:
“colder”
– mixing valve closes
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