High Performance Ventilation Equipment PRO-C Series Energy Recovery Ventilator For Carrier® HJ, TM and TF Rooftops (Sizes 3 to 12.
Table of Contents PRO-C Series Energy Recovery Module...................................................................................................................................... 1 Preconditioning and Good IAQ.................................................................................................................................................... 1 Humidity Control and IAQ .....................................................................................................................
Humidity Control and IAQ The PRO-C Series Energy Recovery Ventilator is an outdoor air preconditioner specifically designed to reduce the energy required to cool or heat the outdoor air by as much as 80 percent. The PRO-C also allows the Carrier® 3 through 12.5 ton HJ, TM, and TF rooftop air-conditioner systems to effectively and economically accommodate the three-to-four fold increase in outdoor air quantities, which is recommended by the ASHRAE Standard 62, Ventilation for Acceptable Indoor Air Quality.
P RO-C S e r i e s Applying the PRO-C Series Unit The PRO-C Series has supply and return connections located on the side of the unit and is designed to mate up to the selected Carrier rooftop air-conditioner. The PRO-C is designed for outdoor installation, has a high level of total recovery effectiveness and includes a single-point electrical connection. In a typical application, the PRO-C pulls exhaust air directly from the return air section of the Carrier unit.
Features Standard Optional 1 Novel System Design • Efficient and economical design meeting the needs of the conventional HVAC market. • Compact, low profile design to conform to typical architectural requirements. • Easy access to all internal components through a large hinged access door and removable roof panel. • Outdoor air inlet and exhaust air outlet located at opposite ends of unit.
Selection Procedure The selection of the PRO-C Series is governed by two parameters: the amount of outside air needed to be preconditioned and the Carrier unit to which the PRO-C is to be mated shown in Table 1. Only a specific size PRO-C will mate to a Carrier unit. Nominally, the PRO-C will provide between 30% and up to 100% of outside air. There is a limited product combination which will allow 100% outside air applications. Table 1. ERV Systems/Carrier Unit Combinations.
wSA = (110 gr/lb - .706 (110 - 65)gr/lb) = 78 gr/lb Winter outdoor air design conditions are 5°F, 4 gr/lb with a return air condition of 70°F, 32 gr/lb. The winter supply air temperature and humidity level is calculated in the same fashion to give a condition of 51°F and 24 gr/lb. Equation 1. Calculating supply, outdoor, and return air temperatures and moisture contents. Example 1: The return air condition is 70°F and 25% relative humidity (27gr/lb).
Fan Tables Exhaust Fan Data Supply Fan Data PRO-C-1000 External Static Pressure (in.wg.)* Airflow (scfm) -0.3 -0.1 0.1 0.3 0.5 1110 1035 965 885 805 External Static Pressure (in.wg.)* Airflow (scfm) -0.3 -0.1 0.1 0.3 0.5 1235 1235 1135 1015 890 All motors 1/2hp, 1,625 rpm PRO-C-2400 Airflow (scfm) -0.3 -0.1 800 .15/516 .15/651 1000 .15/579 1200 0.1 0.3 0.5 .15/785 .15/919 .24/1025 .15/734 .15/889 .24/1008 .43/1113 .15/670 .15/872 .26/1007 .46/1114 .
Unit Arrangement & Dimensions T US HA EX AIR SU D ESS ACC NING OPE PP AIR LY RE TU AIR RN C B G F L ICA TR L EC EL PANE A P RO-C S e r i e s * E ID TS OU AIR FO R F RE AN MO FO R F A AC VAB SE AN C CE LE RV A CE SS PA ICE CC SS (P NE CL ESS DO RO- L EA (P OR C-1 RA RO 00 NC -C 0) E = -24 0 24 0) " E Dimensions (inches) Model# Net Wt. (lbs.) A B C D E F PRO-C-1000 350 30.188 47.875 31.375 11.75 17.0 25.563 14.875 PRO-C-2400 475 38.813 54.750 40.375 13.0 20.0 27.
Electric Preheat Layout P RO-C S e r i e s R NE IO DIT AL N O RIC EC T PR LEC EL E N PA Pro -C Un it PR EH EA EC TER T PA RICA NE L L EL AIR FL OW L B W AIRFLOW H A AIRFLOW B C D SIDE VIEW C PLAN VIEW Model# 8 Dimensions (inches) W H L A B C D PRO-C-1000 24.37 16 14 20 1 2 8 PRO-C-2400 30.5 20.
3Ø Circuit Diagram, PRO-C-1000 USE COPPER CONDUCTORS ONLY Line Power 480/240-208/3/60 Disconnect (by others) *See Note 2 1CR H3 Supply Fan Motor M Exhaust Fan Motor M Wheel Motor H2 2CR H3 2CR H1 3CR H3 3CR H2 3CR H1 H2 208/240/480 - 24VAC 40VA UL Cl 2 XFMR Supply & Exhaust Fan Remote Start/Stop (by others, factory jumpered) H1 1 3 2 2 Optional Thermostat Frost Control *See Note 4 4 2CR 5 2 1 4 1CR 4 3CR P RO-C S e r i e s M 1CR Notes: 1) All dashed lines indicate field wi
3Ø Circuit Diagram, PRO-C-2400 Line Power 480/240-208/3/60 USE COPPER CONDUCTORS ONLY Disconnect (by others) *See Note 2 Notes: 1) All dashed lines indicate field wiring unless otherwise noted. 2) If electric preheater is ordered, the power wiring is factory installed from electric preheater to Preconditioner Panel and includes a disconnect at the preheater. (See specifications and circuit diagram on electric preheater for information on sizing and connecting supply power.
1Ø Circuit Diagram, PRO-C-1000 & PRO-C-2400 USE COPPER CONDUCTORS ONLY Line Power 240-208/1/60 Notes: Disconnect (by others) *See Note 2 1) All dashed lines indicate field wiring unless otherwise noted. 2) If electric preheater is ordered, the power wiring is factory installed from electric preheater to Preconditioner Panel and includes a disconnect at the preheater. (See specifications and circuit diagram on electric preheater for information on sizing and connecting supply power.
3Ø Electric Preheat Frost Control Circuit Diagram cutout airflow switch SC Line Power 208-240V/480V/3¯/60H P RO-C S e r i e s remote duct stat with set point adjuster F1 1 F2 2 3 SC SC SC L1 H1 L2 H2 L3 H3 manual cutoff fuse Solitech master controller H1 H2 H3 delta- or wye-connected electric heat coils to main panel on PRO-C unit 1Ø Electric Preheat Frost Control Circuit Diagram cutout airflow switch remote duct stat with set point adjuster F1 1 F2 2 Line Power 208-240V/1¯/60Hz
Electrical Data Select motors using the fan tables on page 6. For the unit and motors selected, Table 5 will have the corresponding full load amps (FLA) for each motor. Equation 2a. Formula to determine minimum circuit ampacity (MCA) without pre-heater. To determine minimum circuit ampacity (MCA): 1.25 * FLA largest fan motor (Table 5) + FLA other fan motor (Table 5) + FLA wheel drive/ accessories (Table 5) = MCA Equation 2b. Formula to determine minimum circuit ampacity (MCA) with preheater.
Full Load Power Draw Full Load Power Draw (Amps) Unit PRO-C-1000 P RO-C S e r i e s PRO-C-2400 Motor Size (hp) 208V/1Ø 240V/1Ø 208V/3Ø 240V/3Ø 480V/3Ø 3/4 7.6 6.9 7.6 6.9 3.5 Wheel drive/ accessories 1.1 1.1 0 0 0 1/3 4.0 3.6 1.7 1.6 0.8 3/4 7.6 6.9 3.5 3.2 1.6 1-1/2 11.0 10.0 6.6 6.0 3.0 2 13.2 12.0 7.5 6.8 3.4 3 - - 10.6 9.6 4.8 Wheel drive/ accessories 1.6 1.6 1.6 1.6 1.6 Table 5. Electric Unit Data, Full Load Power Draw.
Order Summary Sheet PRO-C-Series Energy Recovery Module For Carrier® Weathermaker™ & Weathermaster™ Units JOB NAME:________________________________________________________ UNIT ID: ___________________________________ PRO-C-1000 PRO-C-2400 208V/1PH 240V/1PH 208V/3PH 240V/3PH 480V/3PH 208V/1PH 240V/1PH 208V/3PH 240V/3PH 480V/3PH ELECTRIC PREHEAT (kW) NO 3 NO 7.
Sample Specifications P RO-C S e r i e s CASING Standard panels shall be 20 gauge galvanized steel, lined with 1/2 inch thick neoprene insulation where required. The housing shall be supported by a formed structural base that forms a pan to ensure weather tight construction. Lifting holes shall be provided at the unit base. Units shall have a weatherproof sheet metal roof.
backup contactors, main disconnect, fusing, control circuit transformer, air flow interlock switch and SCR controller. Coil shall be UL listed and constructed in accordance with NEC requirements. A temperature controller located in the outdoor air section of the unit shall supply the signal to the SCR controller. Optional Freeze Protection Thermostat Unit shall be equipped with an outdoor air temperature thermostat such that the energy recovery ventilator can be stopped during very low temperature periods.
P RO-C S e r i e s Notes 18
Notes P RO-C S e r i e s 19
P RO-C S e r i e s Notes 20
PO Box 1797 Columbia, MO 65205-1797 (573) 886-5400 (573) 886-5401 fax www.ervsystems.com sales@ervsystems.