Heating and cooling mode in Type 668
are 100 % independent. In heating mode, only the heating performance map
is called. If your data file is correct, you should see that heat is added
to the load side and drawn from the source side. Make sure that the cooling
control signal is left to zero.
Best regards,
Knut Erik Enerstvedt
From:
trnsys-users-request@cae.wisc.edu
To:
trnsys-users@cae.wisc.edu
Date:
03/09/2010 07:11 PM
Subject:
TRNSYS-users Digest, Vol 63, Issue 18
Subject:
Re: [TRNSYS-users] Type 668 Heat Pump Performance Issues
Sorry, I should have been more clear. I do have the
sample catalog data cooling map in there, but I am wondering if the very
different capacities are effecting the results.
Are the heating and cooling mode calculations 100% independent, or are
both performance maps called in the calculation?
Fred
FRED BETZ PhD., LEED AP
SUSTAINABLE SYSTEMS ANALYST
AEI | AFFILIATED ENGINEERS, INC.
5802 Research Park Blvd. | Madison, WI 53719
-----Original Message-----
From: Francois Badinier [mailto:francois.badinier@icax.co.uk]
Sent: Tuesday, March 09, 2010 11:31 AM
To: Fred Betz; trnsys-users@cae.wisc.edu
Subject: RE: [TRNSYS-users] Type 668 Heat Pump Performance Issues
Hi Fred
I don't know if it works well without a cooling map, but if you need to
use
the heating mode only, you can use the default cooling file in the
"SampleCatalogData" folder to fill in the gap.
Regards,
François Badinier
Development Engineer
ICAX Ltd
1 Hatfield House
Baltic Street West
London EC1Y OST
francois.badinier@icax.co.uk www.icax.co.uk
-----Original Message-----
From: Fred Betz [mailto:fbetz@aeieng.com]
Sent: 09 March 2010 17:08
To: trnsys-users@cae.wisc.edu
Subject: [TRNSYS-users] Type 668 Heat Pump Performance Issues
TRNSYS Users,
I am using a type669 heat pump in heating mode only and I have entered
a
performance map for the heating side.
If I am using type668 in a heating mode only way, do I need to input a
corresponding cooling map?
In other words, are both a heating and a cooling map required for proper
operation of a heat pump in heating only mode?
What I am seeing in my output is that the heat pump heats the load side,
but
does not draw any heat from the source side.
Please advise,
Fred
FRED BETZ PhD., LEED AP
SUSTAINABLE SYSTEMS ANALYST
AEI | AFFILIATED ENGINEERS, INC.
5802 Research Park Blvd. | Madison, WI 53719
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