LEED 2009 NC - Warehousemodelling HVAC syetm in IES

Hi All, I do need help in the energy modelling for a warehouse project. Thanks in advance! This project consists of 200,000sf of warehouse with 5,000sf office space. The warehouse is heating only; the office uses heat pump for both heating and cooling. Now the questions came: 1. Do I need to model a cooling system in the proposed model? 2. Which baseline system shall I use? From Appendix G, system 7 should be selected. But I doubt if it is applicable for heating only space. 3. Shall I apply two baseline HVAC systems? or just use one dominant system? Many thanks!