Bosch WH36 Installation Manual And Operating Instructions page 11

As per the Canadian Electrical Code, C22.1-
02 Section 26-744, an auxiliary terminal
block must be fitted to the heater before
connecting to the electrical supply.
US wiring
• The minimum recommended wire size is 6 AWG. (The
terminal block will accept cables up to 6 AWG size).
• The cable entry is via the 1¼ inch cable entry hole on the
bottom right hand edge of the back plate.
• Strip back the insulation on the power wires about ½ inch.
Connect the live wires to the terminals marked "L1" and
Fig. 6 WH36 terminal block connection (for the U.S.A.)
Tronic 5000C
"L2." There are three pairs of live wires in the WH36. (See
Fig. 6, page 11).
• Any insulation on the ground wires should be stripped back
about ¾ inch. The ground leads must be connected. Loose
connections can cause wires to heat up.
• Make sure the terminal block screws are tightened
securely. Loose connections can cause wires to heat up.
• Make sure that the ground wires are wrapped around its
terminal stud and into the saddle washer. The nut should be
tightened securely.
• Attach the front cover and tighten the retaining screws.
The WH36 requires three independent 240V AC circuits
protected by three separate and independent double pole
breakers (as shown) rated at least 54A each.
Installation | 11
6 720 647 022 (2013/04)