Form No. 43539049
Oct 2013
–21–
3.
The brooders with the No. 3 and No. 9 control options do not require any electrical supply because they
generate their own electricity and operate thermostatically off this power.
4. Each brooder with the No. 2A and 2B control option requires a 24 volt-power supply via a 24 volt
transformer. The 24 volt transformer MUST be large enough to operate the number of brooders
connected to it (see table below). This is calculated as follows:
No. of Brooders x 16.8VA x 1.25 Safety Factor = Transformer Size
No. Brooders
Minimum Transformer VA
14
294
15
315
16
336
17
357
18
378
19
399
20
420
21
441
22
462
23
483
24
504
An optional Zone Control Power Supply Panel is available as an accessory (Part #43619050) to provide
the required 24VAC for each No. 2A and 2B brooder. The Zone Control comes equipped with a 375VA
transformer.
NOTE: If you plan to use the Zone Control with its DC back-up power supply capabilities, special
attention must be given to individual brooder wiring because the DC electrical power is polarity sensitive.
All brooders must be connected the same way (i.e., the same power leg must be connected to the same
terminal on every brooder). While this will not affect brooder operation on 24VAC, brooders that are not
hooked up in this manner will not work properly on DC power. Refer to Figure 11 for a typical wiring
schematic. These No. 2A and 2B control brooders must be supplied with a thermostat for temperature
control (either with or without the Zone Control Panel).
5. A Thermostat (available as an accessory, Part #30525010, or an environmental controller, etc.) is also
required for each brooder or group of brooders as shown in the schematic. The schematic (Figure 11)
shows a group of four (4) brooders controlled by one (1) thermostat. Additional zone groups having more
or less brooders can be added. These should be wired the same as shown in the schematic. Contact the
factory for pricing and availability for the Zone Control and Thermostat.
8A
ELECTRICAL CONNECTIONS (Model No. 5B or 5D) DIRECT SPARK IGNITION
1. All electrical wiring shall conform to the latest edition of the National Electrical Code (ANSI/NFPA No.
70), or the code legally authorized in the locality where the installation is made. DO NOT use phone cable
for electric supply wiring.
2. The electrical system must be electrically grounded in accordance with the National Electrical Code
(ANSI/NFPA No. 70-latest edition) or the Canadian Electrical Code (C22.1 Part 1-latest edition) as
appropriate.
