Outdoor cable splice or tap

[kitha]

I have Daikin Air-Conditioning units(Japanese) to be installed on a roof. They are approved by CSA and having UL/ULc certifications as well. Two condensor units are usually come together. The wiirng diagram shows one branch circuit to be brought closer to the units and tap or splice it to two and connect to the fused disconnect come with the units.

Here is my question: Can anybody tell me the best product available for outdoor tap or splice in this case? I would call for RW90 cables in conduits closer to the units. Installation is in Canada but a product from USA would be OK.

 

[VEBill]

An outdoor-rated, weather-proof junction box.