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Installation

6

 ACC-SVN121C-EN

3. Identify the wire harness with wire numbers 27B (red) 

and 29B (black).

4. Connect wires 27B and 29B to L1 and L3 respectively of 

the load side of the fuse block. Wire colors should 
match.

5. Note voltage labels on primary of the transformer. 

Screw transformer into control box as shown in 

Figure 4, p. 6

. Ensure reset switch is facing out.

6. Connect wire 29B to COM on the primary of the 

transformer. Connect wire 27B to the appropriate tap 
on the primary of the transformer, corresponding to 
unit supply voltage.

7.

Install pop-in wire tie and snap bushing as shown in 

Figure 4

.

8. Connect wires 35P, 37T, and 36D to the secondary of the 

transformer as shown in 

Figure 9, p. 11

. Attach ground 

wire 36D to control box using provided screw and lock 
washer.

9. Route wires 35P and 37T through snap bushing to LTB2 

along with existing wiring. Connect 35P to LTB2-R and 
37T to LTB2-B2 as shown in 

Figure 9, p. 11

.

10. Neatly collect wire slack in pop-in wire tie. Use other 

wire ties to secure wires as desired.

11. Apply transformer diagram, reset label, and safety 

agency label in locations shown in 

Figure 4

.

Figure 4.

Transformer installation - 2-speed unit

Safety Agency

Summary of Contents for BAYTFMR011

Page 1: ...uld result in death or serious injury When working on the equipment observe all precautions in the literature and on the tags stickers and labels that are attached to the equipment Transformer Odyssey...

Page 2: ...of advisories are defined as follows WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTIONs Indicates a potentially hazardous situati...

Page 3: ...iately to the transportation company and make any appropriate claims 1 Transformer w Enclosure 2 Control Box Access Cover 3 5 Connection Diagrams 4 Wiring Diagrams 4 Wire Harness Standard Unit 5 Wire...

Page 4: ...l box discard and install the snap bushing that is supplied with the kit See Figure 2 WARNING Hazardous Voltage w Capacitors Disconnect all electric power including remote disconnects and discharge al...

Page 5: ...ntact your local sales office 12 Disconnect wire 68T BL from the auxiliary contact on the side of the indoor fan contactor in the control box 13 Connect the piggy back terminal end of wire 68U BL comi...

Page 6: ...ransformer corresponding to unit supply voltage 7 Install pop in wire tie and snap bushing as shown in Figure 4 8 Connect wires 35P 37T and 36D to the secondary of the transformer as shown in Figure 9...

Page 7: ...Installation ACC SVN121C EN 7 Wiring Diagrams Figure 5 BAYTFMR011 BAYTFMR012 BAYTFMR013 one of two single refrigerant circuit...

Page 8: ...Installation 8 ACC SVN121C EN Figure 6 BAYTFMR011 BAYTFMR012 BAYTFMR013 two of two single refrigerant circuit...

Page 9: ...Installation ACC SVN121C EN 9 Figure 7 BAYTFMR011 BAYTFMR012 BAYTFMR013 one of two dual refrigerant circuit...

Page 10: ...Installation 10 ACC SVN121C EN Figure 8 BAYTFMR011 BAYTFMR012 BAYTFMR013 two of two dual refrigerant circuit...

Page 11: ...Installation ACC SVN121C EN 11 Figure 9 Transformer diagram 2 speed air handler with staged condensers...

Page 12: ...nced controls and HVAC systems comprehensive building services and parts For more information visit www IRCO com The manufacturer has a policy of continuous product and product data improvement and re...

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