Venmar Duo 1.2, Руководство по установке

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22
W R G Y
W
R
G
C
Y
9 8 7 6 5 4 3 2 1
UNIT CONTROL CONNECTOR
THERMO S TAT
TERMINAL S
FOUR
WIRE
S
I OC OL Y R G B F F
J 3
TWO WIRE S
he a ting only
FURNACE
24-VOLT
TERMINAL BLOCK
TWO WIRE S
COOLING S Y S TEM
VE0010A
Standard furnace interlock wiring
8. Installation of the Controls
(cont’d)
8.4 E
LECTRICAL
C
ONNECTION TO THE
F
URNACE
W R G Y
W
R
Y
R
G
Y
C
J1
1
2
4
5
6
8
9 3
*FURNACE INTERLOCK
RELAY
NC NO
7
COM
7
THERMO S TAT
TERMINAL
Unit Control Mod u le
4 WIRE S
2 WIRE S
(he a ting only)
wiring
n
u t s
FURNACE
24-VOLT
TERMINAL BLOCK
2 WIRE S
COOLING S Y S TEM
GRAY BROWN
RED
GREEN
BLUE
9-PIN AMP PLUG
*FURNACE INTERLOCK RELAY, PART NO. 1265 8
VE0009A
Alternate furnace interlock wiring
For a furnace connected to cooling system:
On some older thermostats, energizing the “R” and “G” terminals at the furnace has the effect of energizing “Y” at the
thermostat and thereby turning on the cooling system. If you identify this type of thermostat, you must use the
“alternate furnace interlock wiring”. An additional control relay will then have to be installed.
WARNING
Never connect a 120-volt AC circuit to the terminals of the furnace interlock (standard wiring). Only
use the low voltage class 2 circuit of the furnace blower control.
!
8.5 F
URNACE
I
NTERLOCK
T
YPES
The new TII ( Timed Intermittent Interlock) function consists in 2 modes: the standard mode and the special mode.
Therefore, the electronic board terminal of the Solo and Duo units has now 2 additional jumpers intalled across C and
D terminals.
S
TANDARD MODE
The standard mode is the default mode (the interlock function stay as it was). On standard mode, the jumper positions
on terminal C and D keep them non-active:
S
OLO UNITS
D
UO UNITS
S
PECIAL MODE
The special mode drives the furnace interlock relay independently than the HRV/ERV operation. The K4 relay is
activated for 10 minutes, and then is deactivated for a 20-minute period, no matter the HRV/ERV command, even if
the HRV/ERV is stopped. To perform the special mode, unplug the unit and change the jumper locations as shown
below:
S
OLO UNITS
D
UO UNITS
NOTE: For both Solo and Duo units, C and D terminals are now activated.
A B C D E F G A B C D E F G
VE0125
A B C D E F G A B C D E F G
VE0126