Mestek M) G 025, Installation And Operation Instructions Manual, Page: 6 / 47

Form 43471040
Oct 2013
-5-
5.0) SPECIFICATIONS
Model
Model Model
Model
Series Series Series Series No. No. No. No.
R ( R ( R ( R (B,S,M)G B,S,M)G B,S,M)G B,S,M)G
Btu/hr Btu/hr Btu/hr Btu/hr
Input Input Input Input
Heat
Heat Heat
Heat
Exchanger Exchanger Exchanger Exchanger
Length Length Length Length
Total
Total Total
Total
Heater Heater Heater Heater
Length
Length Length Length
Flue Restrictor Flue Restrictor Flue Restrictor Flue Restrictor Plate Plate Plate Plate
I.D. & I.D. & I.D. & I.D. & Part # Part # Part # Part #
Orifice Size Orifice Size Orifice Size Orifice Size
Minimum * Minimum * Minimum * Minimum *
Mounting Height Mounting Height Mounting Height Mounting Height
Natural Gas Natural Gas Natural Gas Natural Gas Propane Gas Propane Gas Propane Gas Propane Gas
@ @ @ @
Horizontal Horizontal Horizontal Horizontal
@ @ @ @
45º Angle 45º Angle 45º Angle 45º Angle
025 25,000
16’ 9’-3”
7/8” #42741120 #42 (0.094) #52 (0.064) 8’ 8’
035 35,000 1” #42741041 #35 (0.110) 1.75mm (0.069) 8’ 8’
045 45,000 1-1/8” #42741031 1/8” (0.125) 5/64” (0.078) 8’ 8’
* MOUNT HEATERS AS HIGH AS POSSIBLE. Minimums are shown as a guideline for human comfort and uniform
energy distribution for complete building heating applications. Consult your Mestek representative for the
particulars of your installation requirements.
Type
Type Type
Type
Gas
Gas Gas
Gas
Gas Pipe
Gas Pipe Gas Pipe
Gas Pipe
Connection
Connection Connection
Connection
Tube
Tube Tube
Tube
Diameter
Diameter Diameter
Diameter
Flue
Flue Flue
Flue
Connection
Connection Connection
Connection
Fresh Air
Fresh Air Fresh Air
Fresh Air
Connection
Connection Connection
Connection
Electrical
Electrical Electrical
Electrical
Supply
Supply Supply
Supply
Current
Current Current
Current
Rating
Rating Rating
Rating
Natural
or Propane
½” MPT
(Male) 3” 4” Round 4” Round
120 Volt, 60Hz,
1 Phase 2.6 Amp
Fuse Fuse Fuse Fuse Rating: Rating: Rating: Rating: Ignition System (direct spark): Ignition System (direct spark): Ignition System (direct spark): Ignition System (direct spark):
Spark Module: 2 Amp 250V
(for 24V Circuit)
30 second pre-purge period
6.0) PACKING LIST
A.
A. A.
A. Control/Draft Inducer
Control/Draft Inducer Control/Draft Inducer
Control/Draft Inducer Package
Package Package
Package
Part Description Part Description Part Description Part Description QTY QTY QTY QTY
Control Box Assembly .............................................................................................................................. 1
Draft Inducer Assembly (with 4” Starting Collar #40504020) ......................................................... 1
Flue Restrictor Plate (refer to 5.0) for I.D. & part number) ................................................................. 1
15” Plastic Vacuum Air Tube (#03988150) .......................................................................................... 1
Control Fastener Kit (#42787000) ........................................................................................................ 1
Containing: ¼ - 20 Locknuts (#02167010) ............................................................. 6
Gas Connector 5/8” OD x 36” (#30302360) ....................................................................................... 1
Installation & Operation Instructions (#43471010) ........................................................................... 1
CONTROL/DRAFT INDUCER
CONTROL/DRAFT INDUCER CONTROL/DRAFT INDUCER
CONTROL/DRAFT INDUCER PACKAGE NUMBERS
PACKAGE NUMBERS PACKAGE NUMBERS
PACKAGE NUMBERS
1
1 1
1----STAGE CONTROLS
STAGE CONTROLS STAGE CONTROLS
STAGE CONTROLS ---- MESTEK
MESTEK MESTEK
MESTEK 2
2 2
2----STAGE CONTROLS
STAGE CONTROLS STAGE CONTROLS
STAGE CONTROLS ---- ME
ME ME
MESTEK
STEK STEK
STEK
MODEL NO.
MODEL NO. MODEL NO.
MODEL NO. PART NO.
PART NO. PART NO.
PART NO. GAS TYPE
GAS TYPE GAS TYPE
GAS TYPE MODEL NO.
MODEL NO. MODEL NO.
MODEL NO. PART NO.
PART NO. PART NO.
PART NO. GAS TYPE
GAS TYPE GAS TYPE
GAS TYPE
RMG025N1U0 44499010 NATURAL RMG025N2U0 44499510 NATURAL
RMG035N1U0 44499030 NATURAL RMG035N2U0 44499530 NATURAL
RMG045N1U0 44499050 NATURAL RMG045N2U0 44499550 NATURAL
RMG025L1U0 44499020 PROPANE RMG025L2U0 44499520 PROPANE
RMG035L1U0 44499040 PROPANE RMG035L2U0 44499540 PROPANE
RMG045L1U0 44499060 PROPANE RMG045L2U0 44499560 PROPANE