29.Optional Guards - Options CD10 & CD12
(Blower Models only)
These guard options are designed to provide complete pro- tection from the rotating drive and/or blower components. Option CD12 is designed for use with Sizes
Option CD10 is designed for use on Sizes
Figure 18 - Optional Guards
Optional
Belt
Guard
Installed
Optional
Blower Inlet
Guard
Installed
30.Optional Multiple Heater Control - Options CL31 & CL32
The multiple heater control options are designed to permit the control of up to six heaters (one master and five slave units) with a single thermostat or a time clock and single/multiple thermostats.
For maximum safety, the multiple control is one in the low voltage circuit. These multiple heater control options may not be used with
Figure 19 - Multiple Heater Control Wiring with Options CL31 and/or CL32
31.Optional Blower/Filter Cabinet - Options CW1, CW2, or CW3
(Blower Models Only)
The blower/filter cabinet option is available for all sizes. The blower/filter cabi- net is shipped separately for field assembly and installation. The cabinet is adapt- able for use with either 1" or 2" filters and may be connected to a return air duct (includes 3/4" duct flange). Option CW1 does not include filters; CW2 includes 1" permanent aluminum filters; and CW3 includes 2" permanent aluminum filters.
Model |
| Filter | Replacement P/N | |
Size | Qty | Size | 1" Filter | 2" Filter |
1 | 20 x 20 | 101608 | 101621 | |
1 | 16 x 25 | 101609 | 101622 | |
| 1 | 20 x 25 | 101610 | 101623 |
2 | 16 x 20 | 101607 | 101620 | |
| 2 | 20 x 20 | 101608 | 101621 |
400 | 2 | 16 x 25 | 101609 | 101622 |
| 2 | 20 x 25 | 101610 | 101623 |
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Filters (Option CW2 or CW3) 
without Filters (Option CW1)