Here's a quote I received to install 2 systems in my house. The house requires all new ductwork and will have one system on the first floor running through the basement and another system on the second floor running through the attic. My question is, what other information do I need from this contractor (I'm leaning towards having the work done by this company but would like to hammer out the final details before signing them on and putting down a deposit).

Quote I received:

Electrical Specifications:

Install low voltage wire from indoor unit to outdoor condenser.

Install new 115 volt shut off switch to heater.

Install one 115 volt duplex receptacle to be mounted on indoor unit.

Install properly sized wire into breaker panel box to include a labeled individual heating or air-conditioning breaker.

All wiring to conform with local codes.

Specifications:

Install one high efficient heating system.

It is critical on new higher efficiency furnaces that the air temperature between the heat exchanger and the return are measured to manufacturer

s specifications. It is equally important that the gas pressure is set properly. Failure to follow these procedures will result in premature replacement of your equipment.

We agree to follow the manufacturer's specifications completely to insure proper operation.

Sheet Metal Specifications:

Install all necessary duct work from evaporator coil to trunk duct. All metal will be 26 gauge and sized properly for most efficient operation.

Install new return air drop and easily accessible filter rack.

Install new duct work throughout house.

Seal all new duct joints with high temperature silicone caulk for highest efficiency.

Air-Conditioning Specifications:

Install one anti-vibration insul-pad for outdoor unit, as a permanent base.

Install one outdoor condensing unit.

Install one indoor insulated cased evaporator coil for future maintenance.

Install insulated copper line set from indoor coil to outdoor condenser; all joints to be brazed as per EPA code.

Install one 3/4" PVC condenser drain from evaporator coil to a pump to the laundry tub or outside.

Start Up:

Fill all air-conditioning lines with no less than 250 p.s.i. of nitrogen to insure no refrigerant leaks.

Vacuum all refrigerant lines with a 500 micron gauge to insure all moisture is removed prior to start up.

Properly fill and weigh in all refrigerant according to manufacturer's charts and EPA law.

Test Delta T or temperature difference or air flow, across the indoor unit, to insure proper distribution.

Two Carrier variable speed air handlers.

Two Carrier (2 ton) 13 SEER air-conditioning systems.

Model Numbers are as follows:

Carrier Performance Series Heat Pump Model #25HPA6

Carrier Performance Series Variable Speed Air Handler Model #FV4

Carrier Performance Series Thermostat Model #TC-PHP

TIA