Missouri Can ClimateMaster Operate in Cooloing Mode While HWG is Disabled?

My ClimateMaster HWG feeds my hot water heater's drain valve, preheating the water. The hot water heater developed a leak and will be offline for a while. Can the ClimateMaster be used in cooling mode while the HWG is disabled by turning off the dipswitch 3-4 and the HWG pipe to the hot water heater valve is turned off? Thanks.