24
Installation of the HHSC with the DH1 and 20/40/60 Minute Timers (test a)
1
2
3
4
5
6
7
8
9
10
LO
ON
R
Y
G
HI
C
NO
NC
BK
FACTORY-INSTALLEDJUMPER
DONOT REMOVE
LO
HI
24C
*
RCWt Gt Gf V
HHSCCONTROL
RCWYGRYWG
THERMOSTAT
FURNACEOR
HEATPUMP
HRV/ERVWIRINGTERMINALS
12V/24VACField wiring,20 AWG min. required
* Connect V Terminalon the HHSC Control to the Hi Terminal (instead of Lo) for a shorter ventilation period.
** One DH-1 Dehumidistat and/or one or more VTC timer controls may be connected as shown.Connect all
Red,Yellow,and Green controlterminals to thecorresponding HRV/ERV terminals.
%
80
20
RYG
Y
R
G
Y
R
G
VTCVENTTIMER CONTROL
(OPTIONAL)**
VTCVENTTIMER CONTROL
(OPTIONAL)**
DH1 DEHUMIDISTAT
(OPTIONAL)**
Setting up the HHSC Control
The duration of the ventilation rate is adjustable
on the Healthy Home System Control™ (HHSC).
Refer to the instructions that accompanied the
HHSC for setup information.
The Healthy Home System™ Control (HHSC)