HMI HOYME ADP-0244-05A User manual

1341-ch 1 Printed in Canada
HMI HOYME Manufacturing Inc. 1-800-661-7382 www.hoyme.com
Installation Instructions for HMI HOYME daptor 0244-05
Control Centre for One Furnace with Two Thermostats heating/cooling Two Separate Zones
INST LL TION OF THIS D PTOR SH LL BE
IN CCORD NCE WITH THE REQUIREMENTS
OF THE UTHORITIES H VING JURISDICTION
Refer also to HOYME Installation Instructions
for Replacement/Ventilation ir Control
Damper, Series H C.
DP-0244-05
4” x 5” x 2 1 2”
101 x 127 x 64 mm
This Relay Adaptor (x2) is to be used in tandem
as a control centre to operate one furnace with
two separate thermostats to heat and cool two
separate zones in a building. Two 24Vac Power
Close dampers are also required. (See wire
diagrams on page 2)
Two-damper zone control operation:
Two Air Control Dampers are required and are to
be in the normally open position so that air from
the furnace fan supplies air simultaneously to both
zones. At such time as heating cooling is required
to a zone, the damper to the other zone closes
thus allowing air to continue flowing to the zone of
attention. If both zones ask for attention, both
dampers remain open. At no time are both
dampers closed while the furnace circulating fan
is running. The call for air conditioning overrides
the call for heat.
Fitness of this daptor/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.
If an intake air duct is required, 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.: DP-0244-05 . (Two required)
Each Adaptor comes with four 24Vac relays:
2 – DPDT, Coil 24Vac. Pts 24Vac-5 Amps.
2 – SPDT, Coil 24Vac. Pts 24Vac-5 Amps
General Installation:
- 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.
daptor Installation:
1. Turn off the power to the furnace.
2. Place adaptors side by side in the area of the
furnace and identify each adaptor with each zone.
3. Connect each zone thermostat to its own
adaptor as per wiring diagram.
4. Note: Connect each adaptor to each other with
terminal #1 to terminal #2 of the other.
5. Connect each adaptor to the furnace terminals
as per wiring diagram.
Two zone damper installation: Before installing
dampers, test for operation to power close with
24Vac supply.
Note: Zone dampers are to be sized so that the
air flow capacity of either damper does not
overload the air flow capacity of the furnace fan. If
necessary, use an atmospheric pressure damper
as a bypass.

1341-ch 2 Printed in Canada
HMI HOYME Manufacturing Inc. 1-800-661-7382 www.hoyme.com
1. Install the two zone dampers as per instructions
supplied with them.
2. Connect each zone damper to each zone
adaptor as per wiring diagram. Recheck all wiring.
3. Turn thermostat to lowest setting and turn on
the power to the furnace.
4. Test heating cooling cycles at least three times
to confirm proper operation.
Damper Identification:
For round dampers use the universal damper
H C-0X10-OPC where X = Diameter of damper,
PC= Power Close.
For rectangular dampers use the custom made
HCR - xxxx - OPC where xx - - = width, - - xx =
height (also the motor side).
For rectangular slip-in dampers use the custom
made HSI - xxxx - OPC where xx - - = width,
- - xx = height (also the motor side).
SCHEM TIC WIRE DI GR M OF
D PTOR DP-0244-05
Note: This marking is also on the inside of the Adaptor cover.
Schematic Wire Diagram of adaptors DP-0244-05 connected together
This label is to be placed next to the wiring diagram of the appliance.