(3500 5500 cfm) CASING Double wall cabinet White exterior paint, 22GA steel Galvanized 18GA steel inner wall Access door with ¼ turn handle Insulation : 2 in 18GA Stainless Steel drain pan Drain connection : 1 in NPT MOUNTING On roof curb or on platform BLOWERS Type: Forward curved (pillow block) Permanently sealed and lubricated ball bearings Diameter: 15 in Width: 10 in Shaft : 1 3/16 in Power transmission by adjustable pulleys and belts Outdoor unit MOTORS Type: Inverter duty 10:1, PREMIUM* efficiency, ODP Speed: 1800 rpm Maximum power : 10 HP Drive assembly/blower : on anti vibration isolators (spring) * T frame only FILTERS Type: MERV8 Quantity: 6/circuit Dimensions: 16 in X 20 in X 4 in CORE Enthalpy (quantity : 2, pitch : 3.3 mm, dimensions : 22.62 in X 22.62 in X 30 in) Indoor unit WARRANTY Core : Limited ten years warranty All other covered components : Limited two years warranty CERTIFICATION Licenced to use the following label of approval NET WEIGHT* (LBS) Min. : 3100 lbs [1406 Kg] Max. : 5200 lbs [2359 Kg] *Depending on options and construction 1
(3500 5500 cfm) CONTROLS Start/stop dry contact and general alarm dry contact Dry contact for occupancy control Terminals for fresh air damper power and control (24VAC, 10VA) Terminals for exhaust air damper power and control (24VAC, 10VA) Power 24VAC 20VA available for accessories Low temperature limit: unit will stop if fresh air supply is under setpoint (adjustable) for more than 5 minutes. Access panel with non fused disconnect (NEMA 4) Single point power connection BACnet compatible controller (communication module is optional) Available power (Volt/Ph/Hz): 208/1/60* 230/1/60* 208/3/60 230/3/60 460/3/60 575/3/60 *to be approved DEFROST Frost control is activated by a temperature reference (Set point: enthalpy core: 10 C) Pre heating, electric coil inside unit, SSR control Pre heating, hot water coil inside unit (0 10V signal available at the control panel, piping connections at rear) By pass damper (fresh air deviation) inside unit Defrost cycles, evacuation or recirculation, (c/w motorized and isolated damper on OA only, see tables below for temperature references. OPTIONS Cabinet Options Intake and exhaust hoods: c/w motorized and isolated dampers. Bird screen on intake and exhaust hoods Roof curb: 14 in high, galvanized 18GA steel, optional insulation available Piping connections (drain pan, post heating water coil and/or cooling coil connections): Front or back Components Options MERV13 filters: Final MERV13 filters added to the fresh air circuit Motorized and insulated dampers (on OA and/or EA openings) Not insulated backdraft damper (on EA opening only). Backward inclined blowers (BI) Post heating coil: electric or hot water (0 10VDC signal to maintain supply air temperature, or 0 10VDC signal by others) Cold water cooling coil: Control by others (c/w 18GA stainless steel drain pan) DX cooling coil (all controls and condensation unit by others, c/w 18GA stainless steel drain pan) Blowers motors options TEFC Two speeds: two speeds motors or simple speed motors with variable speed drives for two speeds applications Variable speed: variable speed drives on motors (0 10VDC control signal by others) Exchange period (min) 35 30 25 20 15 Exchange period of a defrost cycle Standard cycles (7 min defrost) Control options Dirty filters contact: dry contact closes and message on display when dirty filters detected on either air circuit Low airflow switch (will open a dry contact when no airflow is detected on fresh air blower) Free cooling management: control of free cooling by temperature sensor on OA (available with bypass damper only) End switch on dampers: unit start up conditional to dampers opening BACnet network communication modules: MS/TP or IP Remote keypad and display Phase loss detection: unit will stop when a phase loss occurs, automatic restart CO2 detection: sequence control to be validated 10 30 25 20 15 10 5 Outside air temperature (deg C) 2
INTERNAL COMPONENTS 3
UNIT DIMENSIONS AND WEIGHT 4
AVAILABLE CONFIGURATIONS 5
ROOF CURB DIMENSIONS BP (Bypass damper) 6
ROOF CURB ASSEMBLY ROOF CURB ASSEMBLY 7
PERFORMANCES : ENTHALPY CORE 70 * Enthalpy core Efficiency 60 Efficiency (%) 50 40 30 Sensible Latent Total 20 10 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 Air flow (cfm) Supply temperature ( C) 18 16 14 12 10 8 6 4 2 0 2 4 6 8 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 Enthalpy core Supply temperature T2 (T3 at 21 C DB /14 C WB) T1 at 10 C T1 at 0 C T1 at 5 C T1 at 10 C T1 at 30 C Air flow (cfm) 8
INTERNAL STATIC PRESSURE Enthalpy core Internal APD 1.4 1.2 APD (inh2o) 1 0.8 APD 0.6 0.4 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 Air flow (cfm) 4900 5000 5100 5200 5300 5400 5500 MOTOR SELECTION ENTHALPY CORE HP = BHP * 1.2 9
BLOWERS PERFORMANCES 10