Installation Instructions for
HMI
HOYME
Adaptor 0241- 10A
24Vac Controlled Voltage - Switches 24Vac/ 120Vac
1202-ch
-1-
Printed in Canada
HMI
HOYME MANUFACTURING INC. PH. 1-800-661-7382
www.hoyme.com
INSTALLATION OF THIS ADAPTOR SHALL BE IN
ACCORDANCE WITH THE REQUIREMENTS OF
THE AUTHORITIES HAVING JURISDICTION
Refer also to HOYME Installation Instructions:
Combustion Air Control Damper, Series HOM;
Replacement/Ventilation Air Control Damper,
Series HAC; and Adaptor ADP- 1101- 05A.
ADP-0241-10A
4” x 5” x 2 1/2”
101 x 127 x 64 mm
This Relay Adaptor may be used as an automatic
switch having a
24Vac Coil
and
120Vac points
to
control a line voltage circuit for up to a 10 amp
draw such as a 120Vac exhaust fan. All the points
can also be used for 24Vac switching. (See wire
diagrams on next page.)
A typical application where all the points are used
for 24Vac switching may occur when dry points are
used at the exhaust fan switch. When the exhaust
fan switch is turned on, the furnace fan and the
fresh air damper, if used, will open simultaneously.
The fresh air damper, however, will not open for
furnace firing.
If the damper is required to open when the
appliance fires:
a)
Refer to wiring diagram (next page) showing the
Power Close Damper with Relay;
- or -
b)
Use a
regular fresh air damper
with an
ADP-
0242-05A
and follow its Installation Instructions;
- or -
c)
If controlled line voltage is available from the
exhaust fan, use
Adaptor ADP-1102-TWP
and
follow its installation instructions.
Fitness of this Adaptor/Damper combination to
satisfy air supply requirements for fuel fired
appliances during operation of the
Inter-connected exhaust fan(s) shall be
investigated by the enforcing authorities.
Air intake duct installation shall be in accordance
with: In Canada - CAN/CSA B149 & B139; In the
USA – ANSI/NFPA 54, 2006, ANSI Z223.1 and/or
local codes including local codes relating to
ventilation air duct installation.
I.D.: ADP-0241-10A
; comes with two relays with
coils in parallel and therefore acting as one relay.
DPDT- Coil-24Vac. Points-24Vac-5Amps
SPDT- Coil-24Vac. Points 120Vac-10Amps
- One adaptor is required for each heating
appliance.
- Adaptor line voltage leads, connected to the
appliance shall be suitably cabled, fastened and
enclosed in suitable raceways.
- Refer to local and applicable codes.
- If an auxiliary transformer is required, use an
approved 24Vac transformer of adequate capacity.
- Supply for the transformer primary shall be taken
from the line voltage supply of the appliance.
- Always conduct a thorough check-out after
installation is complete.
- Affix appropriate labels and follow
instructions and warnings on each label.
1. Install motorized air control damper as per
instructions supplied with it. Satisfactory
operation of the damper is recommended
before interconnecting Adaptor.
2. Turn off electrical power supply to the
appliance.
3. Connect Adaptor line voltage leads to fan motor
circuit as per wiring diagram and applicable codes.
4. Connect 24Vac Damper terminal wires to
appropriate Adaptor, transformer and control
switches. (See damper wiring diagram for proper
circuit.)
5. Turn on electrical power to 24Vac transformer.
If damper is a Power Open type, it will remain closed
at this time. If damper is a Power Close type, it will
close at this time.
6. Turn on selected switches at least 3 times to
verify the intended operation of selected circuits.
