Honeywell ZG 215N User manual
OPERATION AND PUTTING INTO SERVICE
Comfort Compact Controller ZG 215N
C
CB50266
P1
CBA
20
1476
CB
L1 L2 P1 A
S
5
P1 ACB
ZG215N
-8
4
50
auto
10 12 14 16 18 20 22 24 26 28 30
20 16 12 8 6 4 2 Xp
°C
%
100
90
80
70
60
50
40
30
20
10
0
A
2
4
6
8
10
12
14
16
18
20
20 ...9 0 °C
1,4
2,8
4,2
5,5
7,0
8,2
9,6
10,9
12,4
13,9
8311.7352
B
2
A
3
Hot Water Heating with Room Control
//
////
////
P
VF
ZG215N
TW
ZR
VM
CBZG117.cdr
ZG Control Unit
VM Servomotor
ZR Heating mixing valve
VF Flow sensor
TW Temperature selector
with room sensor
PHeating circuit pump
Operation as a Heating Control
(Fig. left)
The remote control (TF) is composed of a temperature sensor
and atemperature selector. (If desired also two separated devices
can be used.)
nThe temperature sensor measures the actual room temperature.
nThe desired value for the room temperature is to be set on
the temperature selector.
On the basis of both of these values the control unit calculates the
necessary water temperature (flow temperature). It is measured by
the flow sensor (VF). If the flow temperature differs from the set
value, the control unit adjusts 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
ZG Control Unit
VM Servomotor
ZR Heating mixing valve
LF Air duct sensor
TW Temperature selector
FT Frost protection thermo -
//
FT
VM
LF
LF
ZG 215N
///
CB2283
TW
////////
//
Air-handling system with heating coil
//
FT
VM
LF
LF
ZG 215N
///
CB2286
TW
////////
//
ZG Control Unit
VM Servomotor
ZR Heating mixing valve
LF Air duct sensor
TW Temperature selector
FT Frost protection thermo -
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 drive motor so that the 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:
nIn case of a mixing chamber system the blinds for the inco-
ming and outgoing air are set.
nIn case of heating coil control the hot water temperature is
set for air heating.
In both of types of system, the supply of heat is regulated so that the
room temperature set with the temperature selector is maintained.
Operating and Display Components
Pos.Function Basic Setting
A
B
Proportional Range
Operating point setting
4
50
CReduced Mode -8
P1 Sensitivity 5
SOperating mode selector auto
L1 “Hotter” LED (red)
L2 “Colder” LED (green)
1Instructions compartment
2Heating curve diagram
3Basic Settings
4Reserve trip pins
5Inserted trip pins
6Timer (optional)
7Pointer for current time
Settings on the Temperature Selector
P2 Selector knob 0
S1 Party switch auto
Operating mode selector
manu the control unit is deactivated (the timer runs). The mixing
valve can be set manually (by hand). The pump is switched on.
auto Recommended setting for greater energy saving: automatic
change between day and reduced mode according to the timer with
night switch-off.
Manual day mode, timer inactive.
Manual night mode according to the settings on the
setting knobs Bminus C, the timer remains inactive.
LED’s
L1 L2
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
In the manu settings of the operating mode selector Sthere is no
LED display.
Putting into service
nSet the timer 6with the current time.
nSet the operating mode selector Sto auto .
The remaining basic factory settings are printed under 3on the
control unit.
Timer for reduced mode 6
With the aid of the timer, the room temperature during idle periods
can be reduced automatically to save on operating costs.
The timer has a built-in power reserve of approx. 60 hours thanks
to a rechargeable battery.
Changing the program
Factory settings: red pin 6:00, blue pin 22:00.
nPull out the trip pin and insert it again at the desired
switch-on time. Push in the trip pins until they reach the stop.
Owing to the different lengths, the trip
pins must always be inserted in a red/blue
alternate order. Thered trip pin switches
on day mode, while the blue pin activates
reduced mode.
CB5044.7.cdr
In order to make sure that the rooms are heated well in the morning,
the heating system’s day mode should be activated between half an
hour and an hour before using the rooms.
Energy saving tip: Reduced mode can be activated up
to an hour before the room is left. The storage capaci-
ty of the heating system and building is enough to
keep the rooms warm for some time.
Timer with day program
The day program is repeated every 24 hours. If a (second) decrease
in temperature is desired in the course of the day to save energy, the
program needs to be extended. Take the extra trip pins 4and insert
them at the desired time.
Example:
Desired time program
Normal temperature:
6:00 h to 8:00 h and 16:00 h to 22:00 h night decrease:
22:00 h to 6:00 h
day decrease: 8:00 h to 16:00 h
Position of the trip pins:
red pin 6:00 h – Start day mode (normal temperature)
blue pin 8:00 h – Start day decrease
red pin 16:00 h – Start day mode (normal temperature)
blue pin 22:00 h – Start night decrease
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