Reznor CA1 Manuel utilisateur

IMPORTANT SAFETY INFORMATION

Please read all information in this manual thoroughly before installing the power venter kit. Pay attention to all

dangers, warnings, cautions, and notes highlighted in this manual. Safety markings should not be ignored and are

used frequently throughout to designate a degree or level of seriousness.

DANGER: A danger statement describes a potentially hazardous situation that if not avoided, will result in severe

personal injury or death and/or property damage.

WARNING: A warning statement describes a potentially hazardous situation that if not avoided, can result in severe

personal injury and/or property damage.

CAUTION: A caution statement describes a potentially hazardous situation that if not avoided, can result in minor

or moderate personal injury and/or property damage.

NOTE: A note provides important information that should not be ignored.

⚠ DANGER ⚠

• Failure to follow safety warnings exactly and/or improper installation, adjustment, alteration,

service, or maintenance can result in dangerous operation,serious injury,death,or equipment/

property damage.

• The information listed in these instructions must be followed during the installation, service,

and operation of this unit. Read the installation, operation, and maintenance instructions

thoroughly before installing or servicing this equipment. Unqualiﬁed individuals should not

attempt to interpret these instructions or install this equipment.

• The gas burner in all Reznor gas-ﬁred equipment is designed and equipped to provide safe,

complete combustion. However, if the installation does not permit the burner to receive the

proper supply of combustion air, complete combustion may not occur.The result is incomplete

combustion which produces carbon monoxide, a poisonous gas that can cause death. Safe

operation of indirect-ﬁred gas burning equipment requires a properly operating vent system

which vents all ﬂue products to the outside atmosphere. FAILURE TO PROVIDE PROPER

VENTING WILL RESULT IN A HEALTH HAZARD WHICH COULD CAUSE SERIOUS PERSONAL

INJURY OR DEATH.

• Always comply with the combustion air requirements in the installation codes and instructions.

Combustion air at the burner should be regulated only by manufacturer-provided equipment.

NEVER RESTRICT OR OTHERWISE ALTER THE SUPPLY OF COMBUSTION AIR TO ANY

HEATER. Indoor units installed in a conﬁned space must be supplied with air for combustion

as required by Codes and in the heater installation manual. MAINTAIN THE VENT SYSTEM IN

STRUCTURALLY SOUND AND PROPERLY OPERATING CONDITION.

⚠ WARNING ⚠

This power venter kit is designed for use only with Reznor® models F and B unit heaters and

is not applicable to other Reznor brand products or to appliances not manufactured as Reznor

products.

DO NOT DESTROY. PLEASE READ CAREFULLY. KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.

Revision: I-F-B-PV (03-21) 97967-B

POWER VENTER KIT INSTALLATION

Supersedes: I-F&B-PV (09-20) 97967-A

OPTIONS CA1, CA2, AND CA3 FOR UNIT HEATER MODELS F AND B

2I-F-B-PV (03-21) 97967-B

Table 1. Power Venter Kits and Kit Components

Component

Option (Voltage)

CA1 (115V) CA2 (208V) CA3 (230V)

Unit Size

025–100 125 130–200 250–400 125 130–200 250–400 125 130–200 250–400

PN*

Option package 98467 136862 98468 98471 135441 98469 98472 135442 98470 98473

Venter sub-assembly** 97976 97976 97976 97955 97977 97977 97956 97978 97978 97957

Flue adapter assembly*** 97823 146094 97824 97825 146094 97824 97825 146094 97824 97825

Conduit, ﬂexible, 3/8-inch × 24 inches 19680

Parts bag (refer to Table 2) 97966

*Quantity is one (1) except for conduit, which is quantity of two (2).

**Includes factory-assembled motor, venter wheel and housing, pressure switch, time delay relay, and junction box.

***Flue adapter assembly for unit size 125 is a ﬂat plate with ﬂanges and a 4-inch collar.

Figure 1. Power Venter Kit Components

VENTER SUB-ASSEMBLY

CONDUIT

FLUE ADAPTER ASSEMBLY

GENERAL INFORMATION

NOTE: When installation of the power venter is complete, place this instruction booklet in the instruction

envelope supplied with the heater. It is important that this booklet be kept for future reference.

Application

The power venter is a motorized vent exhauster designed to permit the operation of Reznor®gravity-vented model F

(fan) or B (blower) unit heaters in areas of negative pressure up to 0.15 IN WC or where horizontal venting is required.

Sequence of Operation

When the thermostat calls for heat, the thermostat contacts close the circuit, which after a delay of approximately 30

seconds, starts the venter. When the venter starts, air from the venter blower closes the pressure switch built-in to

the venter. This completes the electric circuit to the burner controls and opens the gas valve. When the thermostat

is satisﬁed, the thermostat closes the gas valve and deenergizes the time delay relay. Approximately 45 seconds

after the thermostat is satisﬁed, the venter blower stops and the pressure switch resets to the OPEN position.

Pre-Installation Checklist

Read this entire manual

Ensure that power venter option kit matches unit heater

Note that size of vent pipe changes with addition of this venter

KIT COMPONENTS

Kit components are shown in Figure 1. Refer to Table 1 for kit and component PNs. Parts bag components are

listed in Table 2. The parts bag, which is standard for all option kits, contains all items required for any installation

and may include parts that do not apply to your particular installation. The highlighted parts should always be used.

I-F-B-PV (03-21) 97967-B

KIT INSTALLATION

Install the power venter kit in accordance with the following steps:

⚠ DANGER ⚠

• This power venter is to be installed by a qualiﬁed service agency in accordance with these

instructions and in compliance with all codes and requirements of authorities having jurisdiction.

Failure to follow instructions could result in death, serious injury, and/or property damage. The

agency performing this work assumes responsibility for this installation.

• Improper installation,adjustment,alteration,service,or maintenance can cause property damage,

injury, or death. Read these installation, operation, and maintenance instructions thoroughly

before installing or servicing this equipment.

1. Ensure that gas supply and electric power to heater is OFF.

2. Remove side panel(s):

a. If heater is fan model with standard two-point suspension, remove both outer side panels to allow installation

of two hanger brackets in option package.

b. If heater is fan model with factory-equipped optional four-point suspension or if heater is blower model, remove

only left (when facing rear of heater) outer side panel to allow access for wiring connections. Proceed to step 4.

3. Install hanger brackets (fan models with two-point suspension only):

⚠ WARNING ⚠

Four-point suspension is required to balance and level the heater when power venter kit is installed.

NOTE: Because the power venter adds weight to the back of the heater, additional suspension

points must be used to maintain the unit in a level position without placing a load on the gas valve

and piping. With the outer side panel removed, the factory-installed hanger bracket is visible.

a. Remove screw from inner side panel at side of heater between rear of heater and factory-installed hanger

bracket. Position hanger bracket from option kit at this location.

Table 2. Parts Bag Components

Component Description PN Quantity

Screw Sheet metal, #10 × 1/2-inch 11813 11

Wire connector Twist-on, orange, Ideal #3-0273 16354 13

Box connector T&B #253 16199 3

90-degree 1417 1

Bushing Anti-short, red 16358 4

Open/closed, black, Heyco #OCB-625 148086 2

Wire assembly Brown 98364 1

Wiring, #18AWG, 105°C

Blue, 60 inches long 38462 1

Orange, 60 inches long 91453 1

Yellow, 60 inches long 38463 1

Brown, 60 inches long 38464 1

Black, 36 inches long 3841 1

White, 36 inches long 87880 1

Label Warning 103171 1

Hanger bracket Assembly 96386 2

Flue restrictor

1 × 7 inches, unit sizes 125 and 165 97943 1

1-1/2 × 7-3/4 inches, unit sizes 130 and 250–300 97944 1

2 × 6 inches, unit sizes 075–100 98664 1

2-3/4 × 6 inches, unit sizes 025–050 98665 1

Wire connector Twist-on, yellow (for ﬁeld-connection on model B units) 16355 2

4I-F-B-PV (03-21) 97967-B

KIT INSTALLATION—CONTINUED

b. Insert screw removed in step 3a through slotted hole in hanger bracket—top hole for unit sizes 025–125,

bottom hole for unit sizes 130–400—and secure bracket to inner side panel as shown in Figure 2, DETAIL A.

Slide hanger bracket up against top of inner side panel, align clearance hole and cage nut, and tighten screw.

Figure 2. Hanger Bracket and Hanger Rod Installation

c. Repeat steps 3a and 3b to install hanger bracket on opposite side of heater.

NOTE: To prevent the outer side panel from being removable for future service, do not lock the

hanger rod to the outer panel.

d. If heater is already installed, install hanger rods at two new suspension points. Ensure that heater is level and

that hanger rods are locked to inner panel using locknuts as shown in Figure 2, DETAIL B.

4. Install ﬂue restrictor (all unit sizes except 200 and 400):

⚠ WARNING ⚠

The ﬂue restrictor controls the volume of dilution airﬂow through the draft hood and vent pipe. For

safe and efﬁcient operation, the correct ﬂue restrictor must be installed where required.

NOTES:

• There are four ﬂue restrictors (rectangular pieces of sheet metal) included in the parts bag of

the option package.

• Measure the ﬂue restrictor before installing to ensure the correct size.

• Heaters manufactured before OCT 1989 have a ﬁxed vertical vent outlet. If the heater being

serviced has a ﬁxed vertical vent outlet, install the ﬂue restrictor on the ﬂue adapter assembly

over the ﬁxed vent outlet.

• Unit sizes 200 and 400 DO NOT require a ﬂue restrictor.

a. Refer to Table 2 to select appropriate ﬂue restrictor.

NOTE: The ﬂue adapter assembly with a 4-inch ﬂue collar for unit size 125 (see Figure 3, DETAIL

A) is different from that for other unit sizes.

b. Position ﬂue restrictor across ﬂue opening inside ﬂue adapter assembly from kit, align ﬂue restrictor holes

shown in Figure 3, and secure restrictor to assembly using two sheet metal screws.

DETAIL B

DETAIL A

CLEARANCE HOLE

HANGER ROD LOCKNUT

SCREW

CAGE NUT

I-F-B-PV (03-21) 97967-B

Figure 3. Flue Restrictor and Flue Adapter Assembly Installation

5. Remove existing ﬂue collar assembly:

a. For unit sizes 025, 050, 075, 100, 130, 165, and 200: remove and discard factory-installed ﬂue collar assembly

(if heater was manufactured before OCT 1989, it has ﬁxed vertical vent outlet so there is nothing to remove).

b. For unit size 125: if heater is already installed, remove and discard ﬂue collar plate with 7-inch collar. If heater

has not been installed, proceed to step 6.

c. For unit sizes 250, 300, and 400: if heater is already installed, remove and discard ﬂue collar assembly and

cover plate. If heater has not been installed, proceed to step 6.

6. Install ﬂue adapter assembly:

a. For unit sizes 025, 050, 075, 100, 130, 165, and 200: install ﬂue adapter assembly in accordance with Table 3.

b. For unit size 125: if heater is already installed, replace ﬂue collar assembly removed in step 5a with ﬂue

adapter assembly using sheet metal screws in existing holes. If heater has not been installed, install ﬂue

adapter assembly in accordance with Table 3.

c. For unit sizes 250, 300, and 400: install ﬂue adapter assembly as follows. If heater has not been installed,

install ﬂue adapter assembly in accordance with Table 3.

(1) Center ﬂue adapter assembly (with ﬂue restrictor installed in step 4) on top of heater. Align ﬂue adapter

assembly holes (see Figure 3) and mark three new screw holes on top of heater.

(2) Remove ﬂue adapter assembly and drill holes marked in step 6c(1) using 1/8-inch drill bit.

(3) Secure ﬂue adapter assembly to heater using ﬁve sheet metal screws.

FLUE ADAPTER ASSEMBLY

FLUE ADAPTER ASSEMBLY HOLES

FLUE RESTRICTOR HOLES

UNIT SIZE

125 FLUE

RESTRICTOR

HOLES

DETAIL A

Table 3. Flue Adapter Assembly Installation

Unit Size

025, 050, 075, 100, 130, 165, 200 125 250, 300, 400

1. Center ﬂue adapter assembly (with ﬂue

restrictor installed) on top of heater over ﬂue

outlet support.

NOTE: The ﬂue collar assembly with the

7-inch oval ﬂue collar provided with the

heater is not used.

NOTE: None of the ﬂue outlet pieces

shipped with the heater are used.

2. Align ﬂue adapter assembly holes (see

Figure 3) and mark three new screw holes on

top of heater.

1. Assemble ﬂue outlet using ﬂue collar

support and ﬂat cover provided with heater

and ﬂue adapter assembly (with ﬂue restrictor

installed).*

1. Remove two center screws (one of each

side) that secure ﬂue outlet pieces in place for

shipping. Discard all three pieces and parts

bag.

3. Remove ﬂue adapter assembly and drill

holes marked in step 2 using 1/8-inch drill bit. 2. Attach ﬂue collar support as instructed. 2. Center ﬂue adapter assembly (with ﬂue

restrictor installed) on top of heater.

4. Secure ﬂue adapter assembly to heater

using ﬁve sheet metal screws.

3. Secure ﬂue outlet assembled in step 1 to

heater and attach ﬂat cover plate.

3. Align ﬂue adapter assembly holes (see

Figure 3) and mark three new screw holes on

top of heater.

4. Remove ﬂue adapter assembly and drill

holes marked in step 3 using 1/8-inch drill bit.

5. Secure ﬂue adapter assembly to heater

using ﬁve sheet metal screws.

*Refer to the instructions in the heater installation manual or in form I-F/B-HV125 in the standard vent outlet hardware bag (manuals are also

found online at www.reznorhvac.com).

6I-F-B-PV (03-21) 97967-B

KIT INSTALLATION—CONTINUED

7. Install venter sub-assembly:

NOTE: The venter sub-assembly is assembled and wired at the factory. It includes the venter wheel

and housing, the motor, a junction box, an airﬂow switch, a time delay relay, and on unit sizes 300

and 400, a capacitor.

a. Position venter sub-assembly on ﬂue adapter assembly as shown in Figure 4.

NOTE: To ensure continued proper operation of the sail switch, DO NOT position the venter with

the vent opening in a direction below horizontal.

b. Rotate venter to position that best suits vent pipe direction.

c. While holding venter sub-assembly in desired position (never below horizontal), drill hole through connecting

overlap in top (see Figure 4) of venter sub-assembly and ﬂue adapter assembly.

d. Secure venter sub-assembly to ﬂue adapter assembly using sheet metal screw.

e. Drill two more holes approximately 120 degrees apart and further secure venter sub-assembly to ﬂue adapter

assembly using sheet metal screws.

Figure 4. Venter Sub-Assembly Installation

8. Install conduit:

NOTES:

• All electric wiring and connections, including electrical grounding MUST be in accordance with

the National Electric Code ANSI/NFPA No. 70 (latest edition) or, in Canada, with the Canadian

Electrical Code, Part I-C.S.A., Standard C22.1. In addition, the installation must comply with local

ordinances and applicable gas company requirements.

• The electrical supply wiring connects to the heater on the upper rear of the left side of the unit

(facing the back of the heater).

• If a fan model has an optional unit-mounted disconnect switch, the ON/OFF switch is at the

electrical supply box.

a. Locate two plugged conduit holes shown in Figure 5—typically either to side or below wiring access panel.

b. Carefully pinch—do not pry—and remove two conduit hole plugs.

c. Install red plastic anti-short bushings in ends of conduit and attach straight box connectors to one end of each

ﬂexible conduit.

d. Insert conduit connector with conduit into conduit hole and push connector until it snaps into place. Similarly,

install other assembled conduit and connector.

e. Remove cover from venter junction box (see Figure 4) using 1/4-inch socket or screwdriver.

DRILL TOP HOLE

VENTER JUNCTION BOX

VENTER MOTOR

INSTALLED FLUE

ADAPTER ASSEMBLY

VENTER SUB-ASSEMBLY

I-F-B-PV (03-21) 97967-B

Figure 5. Conduit Installation

f. Depending on direction of vent, position straight and 90-degree box connectors at knockouts in venter junction

box as shown in Figure 6, DETAIL A. Ensure that straight connector is positioned so that it is possible to

tighten holding screw. Secure box connectors using their locknuts and tighten with pliers.

Figure 6. Conduit Connections

⚠ CAUTION ⚠

The conduit must not interfere with fan operation or contact the hot surfaces of the ﬂue gas

collection box or vent pipe.

NOTE: The conduit in the hole closest to the rear of the heater will attach to the 90-degree box

connector.The conduit in the hole toward the front of the heater will attach to the straight box con-

nector. Depending on the size of the unit and the direction of the vent, you may have to shorten

the lengths of the conduit pieces.

g. Route other ends of conduits installed in step 8d to box connectors as shown in Figure 6, DETAIL B. To

shorten, bend the conduit until it breaks. Using a pair of wire snips, ﬁnish cutting and deburr the end.

9. Install and connect wiring:

⚠ WARNING ⚠

Ensure that all electrical connections are made in accordance with the wiring diagram shown in

Figure 7 and that anti-short bushings are installed in line and low voltage conduits.

a. Run two line voltage wires (black and white) through conduit connected at hole nearest to rear of heater and

four low voltage wires (brown, yellow, blue, and orange) through conduit connected at hole nearest to front

of heater.

b. Install red plastic anti-short bushings in ends of conduits.

90-DEGREE BOX

CONNECTOR

STRAIGHT BOX CONNECTOR

DETAIL A DETAIL B

CONDUIT PLUG

WIRING ACCESS PANEL

THREADED ELECTRICAL SUPPLY ENTRANCE

8I-F-B-PV (03-21) 97967-B

KIT INSTALLATION—CONTINUED

Figure 7. Wiring Diagram of Model F or B Unit Heater with Optional Power Venter

I-F-B-PV (03-21) 97967-B

c. Feed two line voltage wires (black and white) into venter junction box through 90-degree box connector and

tighten cover on connector being careful not to punch hole in conduit. Feed four low voltage wires (brown,

yellow, blue, and orange) into venter junction box through straight box connector and tighten holding screw.

d. Connect two line voltage and four low voltage wires in venter junction box using twist-on wire connectors

provided in kit. Refer to Figure 7 to ensure proper connections.

NOTE: To make the power venter-to-heater wiring connections, ensure that the left (when facing

the rear of the heater) outer side panel that was removed in step 2 has not been reinstalled.

e. Refer to Figure 7 and connect line voltage wires (black and white) in electrical supply box on inner side panel

as follows:

(1) On blower units, make connections using two large (yellow) twist-on wire connectors from kit.

NOTE: On fan units equipped with the optional disconnect switch (option AL1), the ON/OFF switch

is located at the electrical supply box. When the disconnect switch is OFF, power should be dis-

connected to the venter.

(2) On fan units equipped with optional disconnect switch (option AL1), ensure that switch is OFF and connect

black supply wire in series after disconnect switch.

f. Refer to Figure 7 and connect low voltage wires (orange, brown, blue, and yellow) as follows:

NOTE: Heaters manufactured before JUN 1992 have two metal partitions. Heaters manufactured

after MAY 1992 have an upper metal partition and plastic cable holders in the lower position.

(1) Intall black open/closed bushing(s) from kit in metal partition(s)as shown in Figure 8, DETAIL A.

(2) Run low voltage wires (orange, brown, blue, and yellow) down side of heater through top metal partition

and either plastic cable holders or bottom metal partition as shown in Figure 8, DETAIL B.

(3) Connect wires in accordance with Figure 7. Ensure that brown wire (ground) is connected properly.

Figure 8. Wiring Installation

NOTE: INNER SIDE PANEL OF STANDARD FAN MODEL

WITHOUT POWER VENTER INSTALLED IS SHOWN.

BOTTOM METAL PARTITION (SHOWN) OR PLASTIC CABLE HOLDERS

TOP METAL PARTITION

ELECTRICAL BOX

FOR LINE VOLTAGE

CONNECTION

EXISTING WIRING

OPEN/CLOSED

BUSHING

METAL PARTITION

DETAIL A

DETAIL B

10 I-F-B-PV (03-21) 97967-B

KIT INSTALLATION—CONTINUED

10. Install warning label:

a. Select location—not on hot surface—on fan back panel or blower adapter back to afﬁx warning label from kit.

b. Wipe surface with clean, dry cloth.

c. Peel adhesive backing from label and adhere it to heater.

NOTES:

ADDITIONAL INSTALLATION NOTES:

• Heaters manufactured after APR 1991 are equipped with a blocked vent switch. The optional

power venter is designed to function with the blocked vent switch.Do not disable the blocked vent

switch when installing the power venter. The blocked vent switch is an important safety device.

• If the heater is not installed, be sure to support the bottom with plywood or other appropriate

material. The bottom access panel could be damaged if the bottom is not supported. Install the

heater in accordance with the installation instructions supplied with the heater (also found at

www.reznorhvac.com) and with the venting, testing, and warning instructions in this booklet.

VENT INSTALLATION

⚠ DANGER ⚠

All gas-ﬁred units must be vented to the atmosphere.

Vent Piping Dimensions

The addition of the power venter changes the vent system requirements. It is recommended that a 12- to 18-inch

piece of straight pipe be connected to the venter before attaching an elbow. The required venter outlet diameters

are 4 inches round for unit sizes 025–200 or 6 inches round for unit sizes 250–400. Vent piping length requirements

are listed in Table 4.

Table 4. Vent Piping Maximum Length Requirements

Unit Size Without Condensation With Possible Condensation*

Diameter (Inches) Length (Feet (Meters))** Diameter (Inches) Length (Feet (Meters))**

025 3*** 30 (9) 3*** 50 (15.2)

4 4

050 3*** 30 (9) 4 75 (22.9)

4 40 (12.2)

075 4 50 (15.2) 5*** 75 (22.9)

100 4 50 (15.2) 5*** 75 (22.9)

125 4 75 (22.9) 8*** 100 (30.5)

130 4 75 (22.9) 5*** 100 (30.5)

165 4 75 (22.9) 5*** 100 (30.5)

200 4 50 (15.2) 6*** 100 (30.5)

250

4*** 15 (4.6)

6 100 (30.5)

5*** 40 (12.2)

6 75 (22.9)

300 6 100 (30.5) 7*** 125 (38.1)

400 6 100 (30.5) —

7*** 125 (38.1)

*65°F surrounding vent pipe and heater on cycle time of three minutes or greater.

**Deduct 15 feet (4.6 meters) for each 90-degree elbow and 7 feet (2.1 meters) for each 45-degree elbow. Elbow deduction does not apply

to condensation determination.

***Connect a taper-type enlarger or reducer to the venter outlet. The vent cap must be the same diameter as the vent system.

Ce manuel convient aux modèles suivants

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