Weil-McLain 2 Series Manual page 103

series
GV90+
Dimensions and ratings
Boiler dimensional and physical data (see
Figure 108
Supply
Boiler
model
(inches NPT
male)
GV90+3
1
GV90+4
1
GV90+5 1
GV90+6 1
Note 1: Gas piping from meter to boiler to be sized per local utility requirements.
Figure 109 Boiler ratings
Boiler
model
CSA
Input
MBH
GV90+3
70
GV90+4 105
GV90+5
140
GV90+6
175
1. Based on standard test procedures prescribed by the United States Department of Energy. Ratings also referred
Notes:
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.
Part number 550-143-010/1021
gas-fired water boiler – boiler manual
2
Return
Length
L
(inches NPT (inches)
female)
1 30¾
1 30¾
1 37¾
1 37¾
AHRI Certified Ratings
Net
Heating water Seasonal
capacity rating Efficiency
(Note 1) (Note 2) (Note 1)
MBH MBH AFUE%
65 57 91.9
97 84 91.2
130 113 91.4
161 140 91.0
(continued)
Figure 107, page 102)
Gas Electrical
connection service
size required
(Note 1)
(includes
the internal
circulators)
(inches NPT (amperes)
female)
½
½
½
½
Vent/ Boiler
combustion water
air diameter content
Inches Gallons
3" PVC 3.8
3" PVC 4.7
3" PVC 6.0
3" PVC 6.9
Boiler
water
content
(gallons)
15 3.8
15 4.7
15 6.0
15 6.9
% Input derate vs vent length
(Values shown are at maximum
vent/air pipe length)
(Note 3)
Direct Exhaust Venting Direct Vent Venting
Natural gas Propane Natural gas
up to 0.7% up to 1.4% up to 1.5%
up to 1.0% up to 2.2% up to 4.0%
up to 4.0% up to 4.0% up to 7.0%
up to 4.0% up to 4.5% up to 7.0%
Approx.
shipping
weight
(pounds)
313
353
423
464
Propane
up to 2.8%
up to 5.4%
up to 8.0%
up to 10.0%
103