You can land for a short time (even just a few hours) in order to claim your PR and then head right back out of the country if you're not yet ready to move permanently. This is called 'soft-landing'.
However, your PR Card, which will serve as your travel document, won't be ready for at least 3 months, so you would need to arrange for someone in Canada to receive the PR Card for you and then do one of the following to ensure you can get back into Canada without any hassle* when you're ready to move permanently.
1) Arrange for the person in Canada who received your PR Card to somehow get it to you (the jury's still out on how 'legal' it is for someone to mail your PR Card to you - no one seems to agree on the matter - people have done it successfully, but then, that's not really a measure of legality)
2) Get back into Canada by crossing the US/Canadian border in a private vehicle, with your passport and COPR
3) Apply for a PR Travel Document in whatever country you go back to, to use as your travel document.
*Note that, it's not so much that CANADA won't let you back in without your PR Card, it's that commercial airlines and other modes of public transportation won't let you board without evidence that you are allowed into the country (i.e. your travel document).
There is a physical residency requirement you need to meet in order to maintain your PR though - right now, you are required to physically be in Canada for 730 days (2 years) out of your first 5 years of permanent residency.
Ohh! You're soo great! Thank you for your help! Just lask question for today, do you know if they do a background check and what's about?