Every SP88 figure below comes from Wine Guardian's own Pro Ducted Split specifications sheet, whose header reads SP25 SP50 SP88 SP200, together with the Pro Ducted Split manual, the Pro Ducted Split brochure and Wine Guardian's SP88 product page. Minimum circuit ampacity, maximum breaker size and electric heat wattage are deliberately not published here; take those from the Wine Guardian specifications sheet and have a licensed electrician confirm both circuits.
ModelSP88
SeriesWine Guardian Pro, a tier within the Sentinel Series
System typeTwo-piece ducted split: ductable fan coil plus remote condensing unit
Line frequency60 Hz
Rated cooling capacity9,840 BTU/h total at 80°F condenser inlet air
Sensible capacity at the same condition7,688 BTU/h
Recommended cellar volume850–4500 ft³
Storage temperature range52°F to 70°F
Humidity55% to 65% relative humidity with the optional Wine Guardian humidifier
Temperature and humidity control accuracyNot published. Wine Guardian's Pro Ducted Split specifications sheet gives no usable per-model accuracy figure for the SP88, and the controls are specified as 24 volt control with the thermostat by others, so accuracy depends on the controller supplied
RefrigerantR-134a
Control type24 volt control, thermostat by others
Fan coil electrical208-230 volts, 1 phase, 60 Hz. This is the model where the fan coil crosses voltage: the SP25 and SP50 fan coils are 115 volts
Fan coil current draw, cooling mode0.8 A
Fan coil fan motor220 rated watts
Fan coil airflow, free blow482 CFM
Fan coil airflow at pressure loss457 CFM at 0.20 in w.c.
Condensing unit electrical208-230 volts, 1 phase, 60 Hz
Condensing unit nominal compressor current11.3 A
Condensing unit fan motor150 W
Condensing unit airflow, free blow420 CFM
Minimum circuit ampacity, maximum breaker size and electric heat wattageNot published on this page. Take these from the Wine Guardian Pro Ducted Split specifications sheet and have a licensed electrician confirm both circuits
Fan coil dimensions (L x W x H)23.8 in x 25 in x 19.7 in
Fan coil weight58 lbs
Condensing unit dimensions (L x W x H)34 in x 12.3 in x 26.07 in, as printed on Wine Guardian's own SP88 product page. The Pro Ducted Split specifications sheet labels the same enclosure the other way round, at 12.3 in length by 34.0 in width
Condensing unit weight96 lbs
Condensate drain connection0.5 in
Minimum ductwork size10 in for a single duct run, 8 in for a double duct run
Maximum refrigerant line set length120 ft
Condensing unit ambient operating range20°F to 115°F
Low ambient optionExtreme Climate Protection, which Wine Guardian states is required for continuous operation in climates that fall below 20°F and enables the system to operate in temperatures as low as minus 20°F. Wine Guardian scopes it to the condenser section only
Agency approvalETLc. Wine Guardian's manual states the entire system is approved by ETL according to UL 1995 and CSA safety standards
PatentWine Guardian states on its SP88 product page that the condensing unit is patented: US Patent No. D791295, EU Patent No. 003189349-0001, UK Patent No. 9003189349000
Warranty25 months parts and 13 months labor. Platinum: 25 months parts and labor plus a 36 month parts-only extension on the compressor, evaporator coil and condenser coil
Net cooling capacity for the SP88 as printed by Wine Guardian on the Pro Ducted Split specifications sheet, under the heading "Performance (57°/55%RH)". The rows are reproduced in the manufacturer's printed order and have not been re-sorted; capacity on this line does not fall in a straight line as the condenser inlet air gets hotter. Wine Guardian footnotes the sheet: all btuh capacity and airflow (CFM) values shown are at tested 230v applied on 208/230v rated units, and where the field application allows 208v applied to the dual-rated units you can generally expect 2.5% to 3.0% decreases in the values shown.
Wine Guardian states on its ducted split category page that cooling capacity is rated at 80°F ambient, which is the row the 9,840 BTU/h headline comes from. Many variables affect proper unit sizing; confirm the final selection with a licensed HVAC professional.