The Smart Heat Pump Expansion 291EXP extends the capabilities of the Smart Heat Pump Control 291, adding support for four additional heat pumps per unit, up to a maximum of sixteen. Expansions connect to the Smart Heat Pump Control 291 via a three-wire communication cable.
Features:
- Expansion for 4 Heat Pumps
- Heat Pump configuration selected by DIP switches
- LED status indicators for power, communication, each Heat Pump and diverting valves
- 3-wire communication
Specifications:
- Agency Approvals: CSA C US, FCC Part 15B, ICES-003 Class A
- Ambient Conditions: Indoor use only, 32 to 122 degrees F (0 to 50 degrees C), less than 90 percent RH Non-condensing, Altitude Less Than 6560 feet (2000 m), Installation Category II, Pollution Degree 2
- Dimensions: 9 IN H x 8 IN W x 2 11/32 IN D (229 x 203 x 60 MM)
- Enclosure Material: Blue ABS Plastic
- Enclosure NEMA Rating: NEMA 1
- Markets: Multifamily Homes, Single-Family Homes, Small Commercial Buildings
- Modulating Output: 0-10 V (dc) 500 ohms minimum load impedance / 4-20 mA 1 k ohms max load impedance
- Power Supply: 115 V (ac) plus / minus 10 percent, 60 Hz, 6W
- Pump Relay: 230 V (ac), 5A, 1/3 hp