Weil-McLain GV90+, Manual

Page: 103 / 108

Part number 550-143-010/1021
103
GV90+
series
2
gas-fired water boiler – boiler manual
Figure 108
Boiler dimensional and physical data (see Figure 107, page 102 )
Figure 109 Boiler ratings
Dimensions and ratings
(continued)
AHRI Certified Ratings
Boiler
model
CSA
Input
Heating
capacity
(Note 1)
Net
water
rating
(Note 2)
Seasonal
Efficiency
(Note 1)
Vent/
combustion
air diameter
Boiler
water
content
% Input derate vs vent length
(Values shown are at maximum
vent/air pipe length)
(Note 3)
Direct Exhaust Venting Direct Vent Venting
MBH MBH MBH AFUE% Inches Gallons Natural gas Propane Natural gas Propane
GV90+3
70 65 57 91.9
3" PVC 3.8 up to 0.7% up to 1.4% up to 1.5% up to 2.8%
GV90+4
105 97 84 91.2 3" PVC 4.7
up to 1.0% up to 2.2% up to 4.0% up to 5.4%
GV90+5 140 130 113 91.4
3" PVC 6.0 up to 4.0% up to 4.0% up to 7.0% up to 8.0%
GV90+6 175 161 140 91.0
3" PVC 6.9 up to 4.0% up to 4.5% up to 7.0% up to 10.0%
Notes:
1. Based on standard test procedures prescribed by the United States Department of Energy. Ratings also referred
to as CSA Output. NOTE that only Heating Capacity and AFUE are certified by AHRI. AFUE is also know as
Annual Fuel Utilization Efficiency or Seasonal Efficiency.
2. Net AHRI ratings are based on net installed radiation of sufficient quantity for the requirements of the building
and nothing need be added for normal piping and pickup. Ratings are based on a piping and pickup allowance of
1.15 and are determined under the provisions governing forced draft boiler-burner units. An additional allowance
should be made for unusual piping and pickup loads.
3. All of the boilers will automatically de-rate as vent length increases, due to the pressure loss through the vent.
For vent/air pipe lengths less than the maximum, the derate equals the value above times vent length ÷ 100.
4. Boilers are tested for 50 PSIG working pressure.
5. GV90+ boilers are not available for millivolt systems.
Boiler
model
Supply Return
Length
L
Gas
connection
size
(Note 1)
Electrical
service
required
(includes
the internal
circulators)
Boiler
water
content
Approx.
shipping
weight
( inches NPT
male)
( inches NPT
female)
( inches) ( inches NPT
female)
(amperes) (gallons) (pounds )
GV90+3 1 1 30¾ ½ 15 3.8 313
GV90+4 1 1 30¾ ½ 15 4.7 353
GV90+5 1 1 37¾ ½ 15 6.0 423
GV90+6 1 1 37¾ ½ 15 6.9 464
Note 1: Gas piping from meter to boiler to be sized per local utility requirements.