Reznor DFCH127 Manual

0 (0)

Model DFC

Direct-Fired, Vertical/Horizontal,

Indoor/Outdoor, Packaged,

Makeup Air Heating and Air

Conditioning System

RCQSQ

LITYSYS

UCT WA

ANSI Z83.18a-2001 CSA 3.7B-2002

ANSI Z83.4B-2002

Table of Contents
Model DFC
DESCRIPTION...............................................................................................	2
STANDARD FEATURES................................................................................	3
OPTIONAL FEATURES - Factory Installed.........................................	3
OPTIONAL FEATURES - Field Installed...............................................	4
TECHNICAL DATA TABLE.............................................................................	4
MODEL SIZE SELECTION............................................................................	4
UNIT CONFIGURATION OPTIONS...............................................................	5
SELECTION GUIDE FOR DIRECT-FIRED MAKEUP AIR............................	7
DIMENSIONS.................................................................................................	8
BRAKE HORSEPOWER TABLE..................................................................	18
PERFORMANCE TABLE.............................................................................	20
FILTER TABLE.............................................................................................	22
STATIC PRESSURE DROP TABLE.............................................................	22
WEIGHT TABLE...........................................................................................	23
AMPERAGE SPECIFICATIONS..................................................................	24
SAMPLE SPECIFICATION..........................................................................	25
REZNOR® PRODUCT LIMITED WARRANTY.............................................	26

IMPORTANT: Specifications are subject to change without notice. This guide is intended to provide specifications and technical information only.

This guide is not intended to be an instruction manual. When installing HVAC Equipment, you must check and conform to all local and national building codes. Improper installation of HVAC Equipment could be dangerous. Consult manufacturer’s installation manual for instructions and important warnings.

In keeping with our policy of continuous product improvement, we reserve the right to alter, at any time, the design, construction, dimensions, weights, etc., of equipment information shown here.

Page Number _______ of ______

Model DFC

INDOOR/OUTDOOR HORIZONTAL AND VERTICAL DIRECT-FIRED MAKEUP AIR SYSTEM

DESCRIPTION	The Reznor Model DFC Series units are direct-fired/makeup and space heaters designed for either indoor or
	outdoor installation. Model DFCH is horizontally arranged. Model DFCV is a vertical cabinet. Units can be con-
	figured for floor mount, outdoor pad mount, rooftop or suspended installation. Model DFC systems are available
	to operate on either natural gas or propane.
	Maximum heating capacity is 12,830 MBH. Maximum air handling capacity is 90,000 CFM. The DFC Series
	provides discharge air at a maximum temperature rise of 120°F.
	The gas manifold has stainless steel mixing plates and offers a 30:1 turndown ratio. There is also a solid state
	flame monitoring system and a burner observation port.
	The AMCA-rated forward curved DWDI centrifugal blower (Class I or Class II) has a polished steel shaft with
	rust inhibitor. Backward inclined and air foil fans are also available. Heavy duty industrial bearings are standard.
	Adjustable V-belt drives are used on motors through 5 HP. Fixed drives are used on motors 7.5 HP and larger.
	Several options are available for internal and external vibration isolation including 1” or 2” deflection spring
	hangers and rubber-in-shear isolation.
	The cabinet is constructed of 18, 16 or 14 gauge Galvaneal steel casing with rust-resistant gray enamel paint
	finish on a welded structural or formed channel base frame. The 1” or 2” thick, high density insulation is glued
	and pinned to the inside cabinet walls. Cabinets can be single wall, solid double wall (for cleaning) or with a
	perforated inner wall liner (for sound attenuation). Outdoor units larger than 218 have a sloped roof. Service
	platform is available for easy access to controls and gas train.
	Vertical units can be mounted on the floor, suspended or mounted on a 3’or 5’stand. Service platforms are also
	available for vertical or horizontal units for a convenient place to stand when working in the controls section.
	Service platform available for filter cabinet access for horizontal units.
	Model DFCH (horizontal configuration) can be arranged for vertical up, vertical down or horizontal supply air
	discharge. Model DFCV (vertical configuration) can also be arranged for vertical up, vertical down or horizontal
	supply air discharge.
	Standard configuration is for 100% outside air. An optional return air plenum (return air bypasses burner) is
	available for recirculating up to 80% return air (available in U.S. only). Inlet air weather hoods have an ex-
	panded metal screen with 2” filters available. Motorized two-position inlet and discharge dampers have a two-
	position spring return and end switch.
	Modules available for filter cabinets, evaporative cooling, return air plenum, DX or chilled water cooling coils;
	as well as steam, hot water or glycol heating coils.
	Electrical controls include electronic flame safeguard relay manual reset; high and low airflow pressure switch-
	es; motor starter with overload protection; control panel service switch; and terminal connections for exhaust
	interlock.
	The discharge air temperature control can be used with or without a room override connected to room thermo-
	stat. Space temperature control can also be selected. Other temperature control options include night setback,
	freeze protection and inlet air control which shuts down the burner when outside air exceeds temperature set-
	ting. Standard features include flame rod ignition system with optional dual flame rods and UV flame supervi-
	sion.
	NEMA4 control panel available unit mounted or remote enclosure. Explosion resistant panels also available.
	Units provided with ETL (for installation in the United States) or ETLC (for installation in Canada) rating plate.
	Manifolds are available to meet ANSI, FM (Factory Mutual), IRI or FM/IRI standards.
	All units are factory wired, piped and test fired.

Form RZ-S-DFC Page 2

STANDARD FEATURES

OPTIONAL FEATURES -

Factory Installed

Page Number _______ of ______

●● ETL (United States) or ETLC (Canada) rating plate

●● Class I Blower (Sizes 127 - 218); Class II Blower (Sizes 222 - 236)

●● Natural gas or propane operation

●● 208/3/60 Supply voltage

●● Cabinet

▬▬Welded structural or formed channel base frame ▬▬Hinged access doors

▬▬Conveniently located lifting lugs

▬▬Heavy steel casing (18 gauge) with rust resistant gray enamel finish

▬▬One-inch thick, 1.5 lb. density, neoprene-coated fiberglass insulation pinned and glued to inside cabinet walls

▬▬Sloped roof on outdoor units on sizes 218 and larger

●● Flame rod ignition system

●● Left hand or right hand side controls

●● 100% outside makeup air with constant supply volume

●● Blower/Motor

▬▬AMCA-rated forward curve DWDI centrifugal blower ▬▬Polished steel shaft with rust inhibitor

▬▬Maximum allowable operating speed set to 75% of first critical speed

▬▬ODP motor, 1800 RPM, T frame, 1.15 service factor mounted on adjustable base

▬▬Drives designed for 150% of motor brake horsepower

▬▬Adjustable V-belt drives on 5 hp motors ▬▬Fixed drives on motors 7.5 hp and larger

●● Class II Blower

●● Gas manifold to meet ANSI, FM, IRI or FM/IRI Standards ●● Manifold arrangements from 700 to 12,830 MBH

●● Gas pressure gauge on manifold

●● 230/3/60, 460/3/60 or 575/3/60 Supply voltage

●● Ignition system

▬▬Dual flame rod ▬▬UV flame supervision

●● Remote reset button for flame safeguard system

●● Gas pressure safety switch

▬▬High gas pressure safety switch (manual reset) ▬▬Low gas pressure safety switch (manual reset)

▬▬Single body high and low gas pressure safety switch (manual reset)

●● Proof of closure valve

●● High gas pressure regulator

●● Purge relays

▬▬Post purge timer and relay ▬▬Pre-purge timer and relay

●● Cabinet

▬▬Gray enamel finish on 16 or 14 gauge Galvaneal ▬▬1” thick high density (2 lb.) or 2” thick insulation

▬▬Internal liners - 22 gauge solid lining (for cleaning) or perforated lining (for sound attenuation) ▬▬Control panel weather housing for outdoor applications

▬▬Horizontal or vertical discharge air options

▬▬Special coatings

●● Three foot or five foot tall mounting stand

●● Service platform for controls section (horizontal or vertical units) and filter cabinet (horizontal only) access

●● Vibration isolation

▬▬1” or 2” deflection spring vibration internal isolation

▬▬1” or 2” dflection external spring hangers

▬▬Motor/blower rubber-in-shear isolation

▬▬External spring isolation under unit channel base

▬▬Seismic vibration isolation

●● Supply air discharge

▬▬Horizontal, vertical up or vertical down configuration (all models) ▬▬Two position motorized discharge air shutoff dampers with spring return

▬▬Low leak airfoil dampers with two position motor and spring return

●● Return air plenum capable of recirculating up to 80% return air (return air bypasses burner) - not available in Canada

●● Motorized Inlet and discharge dampers

●● Motors

▬▬TEFC

▬▬Premium efficiency ODP ▬▬EPACT-compliant ODP

●● Wide variety of control options

Form RZ-S-DFC Page 3

	Model DFC (cont’d)	Page Number _______ of ______
	Model DFC (cont’d)
OPTIONAL FEATURES - Field	●● Extended lube lines
Installed	●● Filter cabinet
	▬▬V-bank filter section
	▬▬Side access
	▬▬2” permanent or pleated filter
	▬▬Access doors completely sealed with gaskets

●● Evaporative cooling module

▬▬with 12” Celdek® media

▬▬with 12” Glasdek® media

▬▬with 2” aluminum mesh washable prefilters

▬▬Automatic fill and drain kit

▬▬Outside air thermostat for fill and drain

●● Discharge air options

▬▬Three faced trapezoidal cowl with discharge louvers

▬▬Cowl with double deflection louvers

▬▬4 sided 360 degree louvered discharge plenum (DFCH bottom discharge only) ●● 16” or 26” roof curb (DFCH only)

●● Wide variety of Temperature controls

●● Coil Cabinets

▬▬Cabinets for DX or chilled water cooling ▬▬Cabinets for steam, hot water or glycol heating

		●● Louvered inlet for maximum velocity of 500 fpm to minimize potential precipitation entering unit
TECHNICAL DATA TABLE
TECHNICAL DATA TABLE				Size	127	130	133	136	218	222	227	230	233	236
	Maximum Heating			MBH	4,000	5,000	5,700	7,000	2,850	4,000	7,850	10,000	11,500	12,830
	Capacity			kW	1,172	1,466	1,671	2,052	835	1,172	2,301	2,931	3,371	3,760

			CFM	Low	20,000	25,000	28,000	30,000	10,000	22,000	30,000	45,000	60,000	70,000
	Air Volume		CFM	High	28,000	35,000	40,000	50,000	20,000	28,000	55,000	70,000	80,000	90,000
	Air Volume			High	28,000	35,000	40,000	50,000	20,000	28,000	55,000	70,000	80,000	90,000
	Range		M3/hr	Low	33,979	42,474	47,571	50,968	16,989	37,377	50,968	76,453	101,937	118,926

				High	47,571	59,463	67,958	84,947	33,979	47,571	93,442	118,926	135,916	152,905
	Maximum			°F						120
	Temperature Rise			°C						67
	Net Weight			lbs.	2,345	2,415	3,105	3,510	2,225	3,080	4,335	4,750	5,980	6,100

				Kg	1,064	1,095	1,408	1,592	1,009	1,397	1,966	2,155	2,713	2,767
				Kg	1,064	1,095	1,408	1,592	1,009	1,397	1,966	2,155	2,713	2,767
MODEL SIZE SELECTION		Model DFC is available in either vertical or horizontal configuration. The fourth letter in the Model number
How to Select a Model and Size		(DFCH, DFCV) indicates whether the unit is horizontal or vertical. The size of the unit is specified by size and
How to Select a Model and Size		quantity of blowers as shown below.
		quantity of blowers as shown below.

		Model		Description
		DFCV		Direct Fired - Vertical Configuration - Specify Upflow or Downflow
		DFCH		Direct Fired - Horizontal Configuration

		Size		Description
		127		Single Blower - 27”x27”
		130		Single Blower - 30”x30”
		133		Single Blower - 33”x33”
		136		Single Blower - 36”x36”
		218		Dual Blowers - 18”x18” each
		222		Dual Blowers - 22”x22” each
		227		Dual Blowers - 27”x27” each
		230		Dual Blowers - 30”x30” each
		233		Dual Blowers - 33”x33” each
		236		Dual Blowers - 36”x36” each

Form RZ-S-DFC Page 4

DFCH Horizontal Units

DFCV Vertical Upflow Units

Page Number _______ of ______

UNIT CONFIGURATION OPTIONS

Model DFCH consists of a burner cabinet and a blower cabinet. Additional modules are available such as a filter section, return air plenum cabinet and other options. The list below indicates all the available modules. The graphic to the right indicates how the different modules are configured.

Note: Larger units are shipped in sections for field assembly.

1.BURNER

2.BLOWER

3.V-BANK FILTER SECTION

4.LOUVER INLET HOOD*

5.RETURN AIR PLENUM CABINET (INCLUDES FILTERS)

6.COIL CABINET WITH DOWN OR UP DISCHARGE PLENUM

7.EVAPORATIVE COOLING CABINET

OPT.V-BANK

4. OPTIONAL

7. OPT.

FILTERS

1. BURNER

2. BLOWER

6. OPTIONAL

LOUVERED

INLET

EVAP.

R/A PLENUM

SECTION

COOLING

COOLER

COIL PLENUM

HOOD*

w/FILTERS

CONTROL

BOX

* Louvered Inlet Hood may be ordered with filters.

Model DFCV consists of a burner cabinet and a blower cabinet. Additional modules are available such as a filter section, return air plenum cabinet, vertical stand and other options. The list below indicates all the available modules. The graphic to the right indicates how the different modules are configured.

Note: Larger units are shipped in sections for field assembly.

Units are inverted as shown for up airflow configuration. To order Model DFCV for down airflow, see option codes on next page.

1.BURNER

2.BLOWER

3.V-BANK FILTER SECTION

4.MOUNTING STAND (3’ OR 5’)

5.RETURN AIR PLENUM CABINET (INCLUDES FILTERS)

6.COIL CABINET

6.OPTIONAL COOLING COIL/ DISCHARGE PLENUM SECTION

2. BLOWER SECTION

CONTROL

BOX

1. BURNER SECTION

3.OPTIONAL V-BANK FILTER SECTION OR

5.OPTIONAL RETURN AIR PLENUM (w/FILTERS)

4.OPTIONAL 3’ OR 5’ MOUNTING STAND

Form RZ-S-DFC Page 5

UNIT CONFIGURATION (cont’d)

Page Number _______ of ______

Control Side and Air

Arrangement Data

As previously mentioned, Model DFC can be arranged for horizontal air flow or vertical air flow (up or down) configuration. There are a variety of air discharge arrangements for each configuration (up, down or horizontal air flow). Units can also be configured for left-hand or right-hand controls.

The following table will show you each available configuration and arrangement and the option codes representing each.

Control Side

Option AJ1 Left side controls (when facing air stream)

Option AJ2 Right side controls (when facing air stream)

Discharge Air Arrangement

Option AQ1 Bottom Discharge (Model DFCH)

Option AQ2 Horizontal Discharge (Model DFCH)

Option AQ13 Top Discharge

Option AQ28 Bottom Discharge (Model DFCV - Down Airflow)

Option AQ30 Horizontal Discharge (Model DFCV - Down Airflow)

AQ32 Horizontal Discharge (Model DFCV Up Airflow)

Example Configuration Selection

Air flow directions and control side illustrations as seen when facing the unit from the control side

DFCH (Horizontal Configuration) AQ1 Option - bottom discharge

AJ1 Option - Left side controls when facing air flow.

DFCH Configurations
AQ1 - AJ1	AQ1 - AJ2	AQ2 -AJ1	AQ2 -AJ2	AQ13 -AJ1	AQ13 -AJ2

DFCV Configurations
AQ32 -AJ1	AQ32 -AJ2	AQ13*	AQ30 -AJ1	AQ30 -AJ2	AQ28*
					*AJ Option not required.

Form RZ-S-DFC Page 6

Page Number _______ of ______

SELECTION GUIDE FOR DIRECT-FIRED MAKEUP AIR

How To

●● Determine whether the unit will be for heating and cooling, humidifying, dehumidifying, or any combination of the above.

●● Determine the maximum air volume requirement. This is generally 10% greater than the maximum air volume of the exhaust system for the space. This will allow the room to be positively pressurized. However, in some makeup systems this may be reversed to keep the space negatively pressurized, keeping odors, toxins, etc. confined to the conditioned space.

●● Once this is known, refer to the DFC Series Performance Specifications to choose the model that can deliver this amount.

●● The corresponding Brake Horse Power (BHP) can then be taken from the DFC Performance Specification Chart, given the external static pressure (ESP" WC). Note: Add the necessary accessory pressure drop(s), to the ESP. Given the blower HP and line voltage, determine the Running Motor Amperage, Inrush Motor

Amperage and Full Load Amps (FLA).

●● Knowing the Unit Model Number and MBH capacity, the corresponding gas connection size can be taken from the DFC Series Specification Table.

●● Given the entering and leaving dry bulb temperatures or temperature rise, the equation below can also be used to calculate the required MBH capacity.

▬▬MBH capacity = (CFM x C x (LAT-EAT))/1000

▬▬MBH capacity: BTUH/1000 (British Thermal Units per hour) ▬▬CFM: Cubic Feet per Minute of air.

▬▬C: Gas constant of 1.188 based on an air density at 75°F

▬▬EAT: Entering Air dry bulb Temperature ( °F) ▬▬LAT: Leaving Air dry bulb Temperature (°F)

●● Specify the unit configuration by referring to the Unit Configuration drawing.

Example:

A room is exhausting 35,000 CFM. The desired room temperature is 70°F. The winter design condition for the area is -10°F. The unit chosen is to be an outdoor direct-fired unit with supply air downward discharge. The ESP is 0.25 in. w.c. The line voltage to the unit is 460/3/60. Gas connection is on the left-hand side.

Determine:

1.The supply air capacity required.

2.Which unit is capable of delivering the required supply air volume, while not exceeding a BHP of 22.0? Note: Since it is an outdoor unit, the inlet louver and filter section air pressure drop must be taken in to consideration.

3.Running Motor Amperage.

4.The MBH capacity and corresponding gas connection size required.

5.Unit configuration.

Selection:

1.Since the exhaust air volume is 35,000 CFM, the supply air capacity should be the same if no pressurization requirements were specified. Therefore the supply air capacity is 35,000 CFM.

2.Referring to the DFC performance Specification Table, the DFC 130, DFC 133,

DFC 136 and the DFC 227 are all capable of delivering the required 35,000

CFM of supply air. The unit must have a maximum of 22.0 BHP when the static pressure of the unit and ESP are added together and applied to the table.

a.ESP = 0.25 in. w.c. (Given)

b.Inlet louver = 0.2 in. w.c. (See Static Pressure Drop Tables)

c.V-Bank filter section = 0.6 in. w.c. (See Static Pressure Drop Tables)

d.0.25 + 0.2 + 0.6 = TESP = 1.05 in. w.c.

e.We will use 1.0 in. w.c. as it appears on the selection table knowing the BHP will be a slight bit more than listed.

3.Using the selection chart we can identify the BHP as follows;

a.DFC 130 = 25 BHP

b.DFC 133 = 20.92 BHP

c.DFC 136 = 19.18 BHP

d.DFC 227 = 15.98 BHP

4.The units that are below the 22.0 BHP that can be used are the DFC 133, DFC 136 and DFC 227. A 25 Hp motor will work well on all of the selections. The smallest unit the DFC 133 is the most economical solution.

5.The Running Motor Amperage for the 25 Hp motor at 460/3/60 is 33.75 amps.

6.The MBH input required for an EAT of -10°F and a LAT of 70°F (80°F rise) is

3,326 MBH

a.MBH=(CFM x 1.188(LAT-EAT))÷1000

b.MBH=(35,000 CFM x 1.188 (70-(-10)))÷1000 = 3,326 MBH

7.The corresponding gas connection size from the selection chart is 2 ½ in.

8.The unit configuration is AQ1-AJ1 for a horizontal left-hand unit with bottom supply air discharge.

Selection for 80/20 Units (Available in US only)

The DFC series unit can be used as a combination makeup air and heating unit. A minimum of 20% fresh air must be provided at all times and the balance (80%) is a combination of fresh and return air. With the dampers fixed for 80% recirculation, the DFC series unit functions as a space heater.

Form RZ-S-DFC Page 7

DIMENSIONS

Page Number _______ of ______

BURNER

BLOWER

SECTION

DFCH Basic Horizontal Units

Burner Section and Blower Section only

BURNER & BLOWER

±1/8” (3mm)

SECTION

The illiustration to the

MOTOR

right

shows

Model

BLOWERS

DFCH

with a

single

blower. The

illustra-

tion to the far right

shows

Model

DFCH

MOTOR

with dual blowers.

BLOWER

Dimensions below are

shown in inches and

(millimeters).

TOP VIEW

FRESH AIR

SUPPLY AIR

DAMPERS

OPTION

CONTROL

PANEL

SUPPLY AIR

OPTION

SUPPLY AIR

OPTION

SIDE VIEW

SUPPLY AIR

SIDE VIEW

SUPPLY AIR

OPTION

SIZE	A	B	C	D	E	F	G	H	J	K	L	M	N	P	Q	R
127	104 5/8	66	60	5	2	N/A	34 1/2	58	4	34 1/2	10 3/8	56	20	15 3/4	62	2
130	104 5/8	66	60	5	2	N/A	37	58	4	37	6 3/8	56	20	14 1/2	62	2
133	116 5/8	74	66	5	2	N/A	43 3/16	58	4	40	8 1/8	62	20	17	70	2
1362	116 5/8	88	66	5	2	N/A	43 3/16	58	4	43	8 1/8	62	20	22 1/2	84	2
2182 4	84 5/8	87	40	5	2	N/A	19 1/8	58	4	22 1/8	8	36	20	12 1/2	83	2
2222 4	86 5/8	104	54	5	2	38 5/8	27 1/2	58	4	27 1/2	11 7/8	50	20	13 3/4	100	2
2272 4	116 5/8	134	60	5	2	58 5/8	34 1/2	58	6	34 1/2	7 7/8	56	20	19	130	2
2302 4	116 5/8	134	60	5	2	58 5/8	37	58	6	37	3 7/8	56	20	15	130	2
2332 4	124 5/8	156	66	5	2	66 5/8	43 3/16	58	6	40	5 5/8	62	20	21 5/8	152	2
2362 4	124 5/8	156	66	5	2	66 5/8	43 3/16	58	6	43	5 5/8	62	20	17	152	2
SIZE	A	B	C	D	E	F	G	H	J	K	L	M	N	P	Q	R
127	(2,657)	(1,676)	(1,524)	(127)	(51)	N/A	(876)	(1,473)	(102)	(876)	(264)	(1,422)	(508)	(400)	(1,575)	(51)
130	(2,657)	(1,676)	(1,524)	(127)	(51)	N/A	(940)	(1,473)	(102)	(940)	(162)	(1,422)	(508)	(368)	(1,575)	(51)
133	(2,962)	(1,880)	(1,676)	(127)	(51)	N/A	(1,097)	(1,473)	(102)	(1,016)	(206)	(1,575)	(508)	(432)	(1,778)	(51)
1362	(2,962)	(2,235)	(1,676)	(127)	(51)	N/A	(1,097)	(1,473)	(102)	(1,092)	(206)	(1,575)	(508)	(572)	(2,134)	(51)
2182 4	(2,149)	(2,210)	(1,016)	(127)	(51)	N/A	(486)	(1,473)	(102)	(562)	(203)	(914)	(508)	(318)	(2,108)	(51)
2222 4	(2,200)	(2,642)	(1,372)	(127)	(51)	(981)	(699)	(1,473)	(102)	(699)	(302)	(1,270)	(508)	(349)	(2,540)	(51)
2272 4	(2,962)	(3,404)	(1,524)	(127)	(51)	(1,489)	(876)	(1,473)	(152)	(876)	(200)	(1,422)	(508)	(483)	(3,302)	(51)
2302 4	(2,962)	(3,404)	(1,524)	(127)	(51)	(1,489)	(940)	(1,473)	(152)	(940)	(98)	(1,422)	(508)	(381)	(3,302)	(51)
2332 4	(3,165)	(3,962)	(1,676)	(127)	(51)	(1,692)	(1,097)	(1,473)	(152)	(1,016)	(143)	(1,575)	(508)	(549)	(3,861)	(51)
2362 4	(3,165)	(3,962)	(1,676)	(127)	(51)	(1,692)	(1,097)	(1,473)	(152)	(1,092)	(143)	(1,575)	(508)	(432)	(3,861)	(51)

11-1/2” inlet and discharge flanges

2DFCH222 and larger burner and blower sections WILL be split for shipping. DFCH136 MAY be split for shipping.

3Service panel access must not be restricted. A minimum clearance of 36” (915mm) is recommended.

4On outdoor dual blower units (size 218 and larger) the roof slopes away from the weatherhousing which covers the control section.

Form RZ-S-DFC Page 8

DFCH ACCESSORIES V-Bank Filter Section

±1/8” (3mm)

Displayed on the following pages are accessory modules for Model DFCH.

The illustration on the left will show the relative location and size of the module.

For example, this page shows the Filter Section on the up stream side of the burner and blower sections.

Dimensional drawings and a dimension table in inches (mm) are also shown.

FILTER	BURNER	BLOWER
SECTION	SECTION	SECTION

CONTROL

BOX

Page Number _______ of ______

DIMENSIONS (cont’d)

V-BANK FILTER

SECTION

H A

B D

		TOP VIEW
	F	FILTERS
	F
C	E
C

SIDE VIEW

SIZE	A	B	C	D	E	F
127	34	66	60	62	56	2
130	50	66	60	62	56	2
133	50	74	66	70	62	2
136	50	88	66	84	62	2
218	34	87	40	83	36	2
222	34	104	54	100	50	2
227	34	134	60	130	56	2
230	50	134	60	130	56	2
233	50	156	66	152	62	2
236	50	156	66	152	62	2
SIZE	A	B	C	D	E	F
127	(864)	(1,676)	(1,524)	(1,575)	(1,422)	(51)
130	(1,270)	(1,676)	(1,524)	(1,575)	(1,422)	(51)
133	(1,270)	(1,880)	(1,676)	(1,778)	(1,575)	(51)
136	(1,270)	(2,235)	(1,676)	(2,134)	(1,575)	(51)
218	(864)	(2,210)	(1,016)	(2,108)	(914)	(51)
222	(864)	(2,642)	(1,372)	(2,540)	(1,270)	(51)
227	(864)	(3,404)	(1,524)	(3,302)	(1,422)	(51)
230	(1,270)	(3,404)	(1,524)	(3,302)	(1,422)	(51)
233	(1,270)	(3,962)	(1,676)	(3,861)	(1,575)	(51)
236	(1,270)	(3,962)	(1,676)	(3,861)	(1,575)	(51)

Louvered Inlet Hood with Filter Section

±1/8” (3mm)

LOUVER
FILTER	BURNER	BLOWER
SECTION	SECTION	SECTION
	CONTROL	B
	BOX	B

LOUVERED INLET

SECTION

WITH FILTERS

TOP VIEW

FILTERS

SIDE VIEW

SIZE	A	B	C	D
127	54	86	60	4
130	68	86	60	4
133	68	94	66	4
136	83	108	66	4
218	34	107	40	4
222	34	124	54	4
227	34	154	60	6
230	50	154	60	6
233	50	176	66	6
236	50	176	66	6
SIZE	A	B	C	D
127	(1,372)	(2,184)	(1,524)	(102)
130	(1,727)	(2,184)	(1,524)	(102)
133	(1,727)	(2,388)	(1,676)	(102)
136	(2,108)	(2,743)	(1,676)	(102)
218	(864)	(2,718)	(1,016)	(102)
222	(864)	(3,150)	(1,372)	(102)
227	(864)	(3,912)	(1,524)	(152)
230	(1,270)	(3,912)	(1,524)	(152)
233	(1,270)	(4,470)	(1,676)	(152)
236	(1,270)	(4,470)	(1,676)	(152)

Form RZ-S-DFC Page 9

DIMENSIONS (cont’d)

Page Number _______ of ______

DFCH ACCESSORIES (cont’d)

Return Air Plenum Section

±1/8” (3mm)

5-3/8”

(137mm)

		X
RETURN AIR		B
FILTER	BURNER	BLOWER
SECTION	SECTION	SECTION
		4-1/2”
	CONTROL	(114mm)
	BOX

R/A OR F/A

OPTIONS C W

TOP VIEW
R/A OR F/A	FILTERS
OPTIONS

R/A OR F/A

OPTIONS

SIDE VIEW

SIZE	B	C	E	W	X
127	66	60	69	34	57 1/2
130	66	60	100	48	57 1/2
133	74	66	103	48	65 1/2
136	88	66	100	48	79 1/2
218	87	40	65	36	83
222	104	54	65	50	100
227	134	60	71	56	130
230	134	60	100	56	130
233	156	66	100	62	152
236	156	66	100	62	152
SIZE	A	B	C	D	E
127	(1,676)	(1,524)	(1,753)	(864)	(1,461)
130	(1,676)	(1,524)	(2,540)	(1,219)	(1,461)
133	(1,880)	(1,676)	(2,616)	(1,219)	(1,664)
136	(2,235)	(1,676)	(2,540)	(1,219)	(2,019)
218	(2,210)	(1,016)	(1,651)	(914)	(2,108)
222	(2,642)	(1,372)	(1,651)	(1,270)	(2,540)
227	(3,404)	(1,524)	(1,803)	(1,422)	(3,302)
230	(3,404)	(1,524)	(2,540)	(1,422)	(3,302)
233	(3,962)	(1,676)	(2,540)	(1,575)	(3,861)
236	(3,962)	(1,676)	(2,540)	(1,575)	(3,861)

RETURN AIR PLENUM CONFIGURATION

			HEATED O/A
20% INLET			MIXED WITH
DAMPER			O/A-R/A
W/ACTUATOR	V-BANK	BURNER	DOWNSTREAM
	FILTERS		FROM BURNER

OUTDOOR	O/A-R/A
AIR	O/A-R/A
AIR	MIXED
	MIXED
80% INLET
DAMPER	RETURN	RETURN AIR
W/ACTUATOR	RETURN	DAMPER
W/ACTUATOR	AIR	DAMPER
	AIR	W/ACTUATOR
		W/ACTUATOR

The Return Air Plenum cabinet is capable of recirculating up to 80% return air.

This allows Model DFC to be used as a combination makeup air and heating unit. A minimum of 20% fresh air must be provided at all times and the balance

(80%) can be a combination of fresh and return air. With the dampers fixed for

80% recirculation, Model DFC functions as a space heater.

The above illustration is a representative diagram for how the ReturnAir Plenum works in a Model DFCH (horizontal unit). A diagram for Model DFCV (vertical unit) with the Return Air Plenum option is not shown, but the function and damper arrangements are similar.

Note: Not available in Canada.

Form RZ-S-DFC Page 10

DIMENSIONS (cont’d)

Page Number _______ of ______

DFCH ACCESSORIES (cont’d) Evaporative Cooling Section

±1/8” (3mm)

	EVAP.
LOUVER	COOLING	BURNER	BLOWER
SECTION	SECTION	SECTION	SECTION

CONTROL

BOX

LOUVERED	EVAPORATIVE
INLET HOOD	COOLING SECTION
B	A
C
	G
	TOP VIEW

FILTERS

FRESH

AIR

FLOW

SIDE VIEW

	SIZE	A	B	C	D	E	F	G	2” FILTERS
	127	90	24	134	93	66	60	20	(15) 16x25
									(10) 20x25
	130	80	24	134	96	66	60	20	(15) 16x25
									(10) 20x25
	133	80	24	134	112	74	66	20	(20) 16x25
									(10) 20x25
	136	100	24	170	125	88	66	20	(36) 20x25
									(6) 20x16
	218	70	24	110	77	87	40	20	(8) 15x25
									(8) 20x25

	222	70	24	132	85	104	54	20	(20) 20x25
	227	90	38	170	110	134	60	20	(20) 20x25
									(15) 20x16
	230	102	38	230	120	134	60	20	(36) 20x25
									(18) 16x25
	233	102	38	230	120	156	66	20	(36) 20x25
									(18) 16x25
	236	102	38	254	120	156	66	20	(40) 20x25
									(20) 16x25
	SIZE	A	B	C	D	E	F	F	2” FILTERS
	127	(2,286)	(610)	(3,404)	(2,362)	(1,676)	(1,524)	(508)	(15) 16x25
									(10) 20x25
	130	(2,032)	(610)	(3,404)	(2,438)	(1,676)	(1,524)	(508)	(15) 16x25
									(10) 20x25
	133	(2,032)	(610)	(3,404)	(2,845)	(1,880)	(1,676)	(508)	(20) 16x25
									(10) 20x25
	136	(2,540)	(610)	(4,318)	(3,175)	(2,235)	(1,676)	(508)	(36) 20x25

									(6) 20x16
	218	(1,778)	(610)	(2,794)	(1,956)	(2,210)	(1,016)	(508)	(8) 15x25
									(8) 20x25
	222	(1,778)	(610)	(3,353)	(2,159)	(2,642)	(1,372)	(508)	(20) 20x25
	227	(2,286)	(965)	(4,318)	(2,794)	(3,404)	(1,524)	(508)	(20) 20x25
E									(15) 20x16
	230	(2,591)	(965)	(5,842)	(3,048)	(3,404)	(1,524)	(508)	(36) 20x25
									(18) 16x25
	233	(2,591)	(965)	(5,842)	(3,048)	(3,962)	(1,676)	(508)	(36) 20x25
									(18) 16x25
	236	(2,591)	(965)	(6,452)	(3,048)	(3,962)	(1,676)	(508)	(40) 20x25
									(20) 16x25

Form RZ-S-DFC Page 11

DFCH ACCESSORIES (cont’d) Cooling Coil Section

±1/8” (3mm)

COIL CABINET	COIL CABINET
WITH DOWN	WITH HORIZ.
DISCHARGE	DISCHARGE
SECTION	SECTION

A					B
	F	J			G
		J

			D			D
K		E		K	E
		E			E
		TOP VIEW
L		C	L		H	C

SIDE VIEW

Page Number _______ of ______

DIMENSIONS (cont’d)

		COOLING	CONTROL
		COOLING	BOX
BURNER	BLOWER	COIL
SECTION	SECTIONSECTION



SIZE	A	B	C	D	E	G	H		J	K	L
127	95	61	94	105	95	5	84	4	1/2	90	85

130	102	66	105	115	105	5	95	4	1/2	100	96
133	102	66	109	125	115	5	99	4	1/2	110	100

136	115	71	119	141	131	5	109	4 1/2		126	110
218	74	50	65	113	103	5	55	4	1/2	98	56

222	84	60	78	130	120	5	68	4	1/2	115	69
227	106	70	103	179	169	5	93		6	164	94

230	122	80	119	193	183	5	109		6	178	110
233	123	80	122	214	204	5	112		6	199	113
236	136	90	131	222	212	5	121		6	207	122
SIZE	A	B	C	D	E	G	H		J	K	L
127	(2,413)	(1,549)	(2,388)	(2,667)	(2,413)	(127)	(2,134)	(114)		(2,286)	(2,159)
130	(2,591)	(1,676)	(2,667)	(2,921)	(2,667)	(127)	(2,413)	(114)		(2,540)	(2,438)
133	(2,591)	(1,676)	(2,769)	(3,175)	(2,921)	(127)	(2,515)	(114)		(2,794)	(2,540)

136	(2,921)	(1,803)	(3,023)	(3,581)	(3,327)	(127)	(2,769)	(114)		(3,200)	(2,794)
218	(1,880)	(1,270)	(1,651)	(2,870)	(2,616)	(127)	(1,397)	(114)		(2,489)	(1,422)

222	(2,134)	(1,524)	(1,981)	(3,302)	(3,048)	(127)	(1,727)	(114)		(2,921)	(1,753)
227	(2,692)	(1,778)	(2,616)	(4,547)	(4,293)	(127)	(2,362)	(152)		(4,166)	(2,388)

230	(3,099)	(2,032)	(3,023)	(4,902)	(4,648)	(127)	(2,769)	(152)		(4,521)	(2,794)
233	(3,124)	(2,032)	(3,099)	(5,436)	(5,182)	(127)	(2,845)	(152)		(5,055)	(2,870)

236	(3,454)	(2,286)	(3,327)	(5,639)	(5,385)	(127)	(3,073)	(152)		(5,258)	(3,099)

Form RZ-S-DFC Page 12

DIMENSIONS (cont’d)

Page Number _______ of ______

		SUPPLY AIR
DFCV Basic Vertical Units		OPTION
DFCV Basic Vertical Units		C	H	B
Burner Section and Blower Section only	F	L	G	K
Burner Section and Blower Section only	F		G	K
±1/8” (3mm)				M
±1/8” (3mm)

BLOWER	SUPPLY AIR	L
SECTION	OPTION

BLOWER
SECTION		BLOWER
		BLOWER
	A	CONTROL
CONTROL		PANEL
CONTROL	BURNER
BOX	BURNER	MOTOR
BURNER	SECTION	MOTOR
SECTION	SECTION
SECTION
		N

NOTE: Dimensions are the same for upflow and downflow units. On a floor-mounted, downflow unit with side discharge is ordered (Option AQ30), a four inch base is included.

SIDE VIEW	FRESH AIR	FRONT VIEW
	DAMPERS

	SUPPLY AIR
	OPTION	C	H		B
	F	L	G	K	K	G
	F					M
						M
BLOWER					BLOWERS	L
SECTION	D	SUPPLY AIR			BLOWERS	L
	D	OPTION
		OPTION
A
		CONTROL			MOTOR
		CONTROL
BURNER		PANEL
SECTION	E
		N

				SIDE VIEW				FRESH AIR			FRONT VIEW
								DAMPERS

SIZE	A	B	C	D	E		F		G	H	K	L	M	N
127	104 5/8	66	60	N/A	N/A	10 3/8			15 3/4	20	34 1/2	34 1/2	3 7/8	3
130	104 5/8	66	60	N/A	N/A	6	3/8		14 1/2	20	37	37	3 7/8	3
133	116 5/8	74	66	N/A	N/A	8	1/8		17	20	40	43 3/16	3 7/8	3
136	116 5/8	88	66	N/A	N/A	8	1/8		22 1/2	20	43	43 3/16	3 7/8	3
218	84 5/8	87	40	N/A	N/A		8		12 1/2	20	22 1/8	19 1/8	4	3
222	86 5/8	104	54	38 5/8	58	11 7/8			13 3/4	20	27 1/2	27 1/2	4	3
227	116 5/8	134	60	58 5/8	58	7	7/8		19	20	34 1/2	34 1/2	4	3
230	116 5/8	134	60	58 5/8	58	3	7/8		15	20	37	37	4	3
233	124 5/8	156	66	66 5/8	58	5	5/8		21 5/8	20	40	43 3/16	4	3
236	124 5/8	156	66	66 5/8	58	5	5/8		17	20	43	43 3/16	4	3
SIZE	A	B	C	D	E		F		G	H	K	L	M	N
127	(2,657)	(1,676)	(1,524)	N/A	N/A	(264)			(400)	(508)	(876)	(876)	(98)	(76)
130	(2,657)	(1,676)	(1,524)	N/A	N/A	(162)			(368)	(508)	(940)	(940)	(98)	(76)
133	(2,962)	(1,880)	(1,676)	N/A	N/A	(206)			(432)	(508)	(1,016)	(1,097)	(98)	(76)
136	(2,962)	(2,235)	(1,676)	N/A	N/A	(206)			(572)	(508)	(1,092)	(1,097)	(98)	(76)
218	(2,149)	(2,210)	(1,016)	N/A	N/A	(203)			(318)	(508)	(562)	(486)	(102)	(76)
222	(2,200)	(2,642)	(1,372)	(981)	(1,473)	(302)			(349)	(508)	(699)	(699)	(102)	(76)
227	(2,962)	(3,404)	(1,524)	(1,489)	(1,473)	(200)			(483)	(508)	(876)	(876)	(102)	(76)
230	(2,962)	(3,404)	(1,524)	(1,489)	(1,473)	(98)			(381)	(508)	(940)	(940)	(102)	(76)
233	(3,165)	(3,962)	(1,676)	(1,692)	(1,473)	(143)			(549)	(508)	(1,016)	(1,097)	(102)	(76)
236	(3,165)	(3,962)	(1,676)	(1,692)	(1,473)	(143)			(432)	(508)	(1,092)	(1,097)	(102)	(76)

11-1/2” inlet and discharge flanges

2DFCV233 and larger burner and blower sections WILL be split for shipping.

3Service panel access must not be restricted. A minimum clearance of 36” (915mm) is recommended.

Form RZ-S-DFC Page 13

DIMENSIONS (cont’d)

Page Number _______ of ______

DFCV ACCESSORIES (cont’d)
Return Air Plenum Section
±1/8” (3mm)
			BLOWER
			SECTION
CONTROL
	BOX
			BURNER
			SECTION
			RETURN AIR
			PLENUM
			FILTER SECTION
		C
			FILTERS
R/A OR E			R/A OR
FRESH	W		FRESH
AIR	W		AIR
FLOW			FLOW
	J		4-1/4”
		C	4-1/4”	X
	5-3/8”	C	(108mm)	X
	5-3/8”	L	(108mm)	B
(137mm)		W		B
		W
		SIDE VIEW		FRONT VIEW
		SIDE VIEW		FRONT VIEW

RETURN AIR PLENUM CONFIGURATION

	HEATED O/A
	MIXED WITH
	O/A-R/A
	DOWNSTREAM
	FROM BURNER
	BURNER
	V-BANK	RETURN AIR
	FILTERS	RETURN AIR
	FILTERS	DAMPER
		DAMPER
		W/ACTUATOR
	O/A-R/A
	MIXED	RETURN
		RETURN
		AIR
	20% INLET
	DAMPER	80% INLET
	W/ACTUATOR	80% INLET
	W/ACTUATOR	DAMPER
	OUTDOOR	DAMPER
	AIR	W/ACTUATOR

SIZE	B	C	E	W	X
127	66	60	69	34	57 1/2

130	66	60	100	48	57 1/2
133	74	66	103	48	65 1/2

136	88	66	100	48	79 1/2
218	87	40	65	36	8 3
222	104	54	65	50	100
227	134	60	71	56	130
230	134	60	100	56	130

233	156	66	100	62	15 2
236	156	66	100	62	152
SIZE	A	B	C	D	E
127	(1,676)	(1,524)	(1,753)	(864)	(1,461)

130	(1,676)	(1,524)	(2,540)	(1,219)	(1,461)
133	(1,880)	(1,676)	(2,616)	(1,219)	(1,664)

136	(2,235)	(1,676)	(2,540)	(1,219)	(2,019)
218	(2,210)	(1,016)	(1,651)	(914)	(2,108)

222	(2,642)	(1,372)	(1,651)	(1,270)	(2,540)
227	(3,404)	(1,524)	(1,803)	(1,422)	(3,302)
230	(3,404)	(1,524)	(2,540)	(1,422)	(3,302)
233	(3,962)	(1,676)	(2,540)	(1,575)	(3,861)
236	(3,962)	(1,676)	(2,540)	(1,575)	(3,861)

The Return Air Plenum cabinet is capable of recirculating up to 80% return air. This allows Model DFC to be used as a combination makeup air and heating unit. A minimum of 20% fresh air must be provided at all times and the balance (80%) can be a combination of fresh and return air. With the dampers fixed for

80% recirculation, Model DFC functions as a space heater.

See the illustration for the ReturnAir Plenum for Model DFCH (horizontal unit).A diagram for Model DFCV (vertical unit) with the Return Air Plenum option is not shown, but the function and damper arrangements are similar.

Note: Not available in Canada.

Form RZ-S-DFC Page 14

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