Honeywell ZG 215VN OPERATION AND PUTTING INTO SERVICE

Comfort Compact Controller ZG 215VN

OPERATION AND PUTTING INTO SERVICE

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5

B

BC

ZG215 VN

auto1

P1 CB

L1 L2 P1

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C( )

0

-8

P1

S

8311.7151

CB

C

CB50268

B

A

Constant discharge temperature control

TW

V

FT

LF

VM

DR

ZG 215VN

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CB2282

ZG Control Unit
VM Servomotor
DR Heating mixing valve
LF Air flow sensor

TW Temperature selector (opt.)
FT Frost protection thermostat
V Air heater

Constant flow temperature control for a
floor heating system

TW

ZG215VN

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ZG Control Unit
VM Servo motor
ZR Heating mixing valve
VF Flow sensor

VF

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VM

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P

ZR

TW Temperature selector
T Temperature limiter
P Heating circuit pump

T

CBZG107.cdr

Operating the Control

The ZG 215VN can be used at choice for the control of an
air-handling system’s constant discharge temperature (left-

hand system diagram) or a floor heating’s constant flow tempe
rature (right-hand system diagram).

TheVF/LF temperature sensors monitor constantly the actual va
lues and transmitthese values to theZG control unit. Should the “

temperature or the supply temperature deviate from the target va
lue, the controller commands the VM servo motor to adjust the
ZR/DR mixing valve.

The mixing valve performs the necessarychange tothe mixing ra
tio betweenthe heated supplywater and theheating circuit’s retur

ning cooled water.
TheTW temperature selector is used as remotecontrol. By means

of theP2 selector knobthe flow or supplytemperature can be mo
dified. The temperature selector is not absolutely necessary in

functional terms, but it makes the operation easier.
The FT frost protection thermostat (air-handling system only)

works independentlyfrom the controlunit and protects theair hea
ter against freezing.

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Operating and Display Components

Pos. Function Basic Setting

B Day mode
C Reduced mode
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 the current time

Settings on the Temperature Selector

P2 Selector knob

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 higher energy saving:

automatic change between day and reduced mode
according to the timer with night switch-off.

Only night mode, timer not active.

Constant reduced mode according to the settings on
the setting knobs B minus 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 themanu settings ofthe operating modeselector S there isno
LED display.

Putting into service

Set the timer 6 with the current time

n

Set the operating mode selector S to auto

n

The remaining basic factory settings are printed under 3 on the
control unit.

Timer for reduced mode 6

With theaid of thetimer, the roomtemperature during idleperiods
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.