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Installation of the DHVC Ventilation Control with 20/40/60 Minute Timers (test c)
1
2
3
4
5
6
7
8
9
10
L
O
ON
R
Y
G
HI
C
NO
NC
BK
FACTORY-INSTALLED JUMPER
FOR STANDBY-OFF OPERATION.
SEE“SETTING STANDBY”SECTION
OF INSTALLATION INSTRUCTIONS
LO
HI
24C
RCW
Y
GRYWG
T
HERMOSTAT
FURNACE OR
HEAT PUMP
HRV/ERVWIRINGTERMINALS
12V/24VAC Field wiring, 20 AWG min.required
* ConnectV Terminal on the HHSC Control to the Hi Terminal (instead of Lo) for a shorter ventilation period.
** One DH-1 Dehumidistat and/or one or moreVTC timer controls may be connected as shown.Connect all
Red,Yellow, and Green control terminals to the corresponding HRV/ERV terminals.
R
Y
G
Y
R
G
Y
R
G
V
TCVENTTIMER CONTROL
(OPTIONAL)**
V
TCVENTTIMER CONTROL
(OPTIONAL)**
DHVC VENTILATION
C
ONTROL
N
OTE:These connections are not necessary
if the system is configured as fully
dedicated (no central HVAC connections).
%
80
2
0
H
IG
H